Can't see the actual source

My problem seems a little weird... I installed JADclipse and everything seems to be working, but when I double click on a class file to decompile it, all I get is what seems to me, be a log of what happened:
<code>
/*jadclipse*/

/***** DECOMPILATION REPORT *****

    DECOMPILED FROM: F:\Karel\KarelJRobot.jar

    TOTAL TIME: 16 ms

    JAD REPORTED MESSAGES/ERRORS:

    EXIT STATUS:    0

    CAUGHT EXCEPTIONS:
java.io.IOException: CreateProcess: jad -p -t4 -b -f -lnc -lradix10 -radix10 Directions.class error=2
    at java.lang.ProcessImpl.create(Native Method)
    at java.lang.ProcessImpl.<init>(Unknown Source)
    at java.lang.ProcessImpl.start(Unknown Source)
    at java.lang.ProcessBuilder.start(Unknown Source)
    at java.lang.Runtime.exec(Unknown Source)
    at jadclipse.JadDecompiler.decompile(JadDecompiler.java:161)
    at jadclipse.JadDecompiler.decompileFromArchive(JadDecompiler.java:218)
    at jadclipse.JadclipseSourceMapper.findSource(JadclipseSourceMapper.java:91)
    at jadclipse.JadclipseSourceMapper.findSource(JadclipseSourceMapper.java:71)
    at jadclipse.JadclipseClassFileEditor.doOpenBuffer(JadclipseClassFileEditor.java:109)
    at jadclipse.JadclipseClassFileEditor.init(JadclipseClassFileEditor.java:56)
    at org.eclipse.ui.internal.EditorManager.createSite(EditorManager.java:778)
    at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:596)
    at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:384)
    at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:552)
    at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:223)
    at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2362)
    at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2295)
    at org.eclipse.ui.internal.WorkbenchPage.access$9(WorkbenchPage.java:2287)
    at org.eclipse.ui.internal.WorkbenchPage$9.run(WorkbenchPage.java:2273)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2268)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2249)
    at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:263)
    at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:140)
    at org.eclipse.jdt.internal.ui.actions.OpenActionUtil.open(OpenActionUtil.java:49)
    at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:169)
    at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:153)
    at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:222)
    at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:198)
    at org.eclipse.jdt.internal.ui.packageview.PackageExplorerActionGroup.handleOpen(PackageExplorerActionGroup.java:296)
    at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart$4.open(PackageExplorerPart.java:869)
    at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:741)
    at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1044)
    at org.eclipse.core.runtime.Platform.run(Platform.java:783)
    at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:44)
    at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:148)
    at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:739)
    at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:968)
    at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1067)
    at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:243)
    at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:238)
    at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:277)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3125)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2758)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1699)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:367)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
    at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103)
    at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:226)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:163)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334)
    at org.eclipse.core.launcher.Main.basicRun(Main.java:278)
    at org.eclipse.core.launcher.Main.run(Main.java:973)
    at org.eclipse.core.launcher.Main.main(Main.java:948)

java.io.IOException: CreateProcess: jad -p -t4 -b -f -lnc -lradix10 -radix10 Directions.class error=2
    at java.lang.ProcessImpl.create(Native Method)
    at java.lang.ProcessImpl.<init>(Unknown Source)
    at java.lang.ProcessImpl.start(Unknown Source)
    at java.lang.ProcessBuilder.start(Unknown Source)
    at java.lang.Runtime.exec(Unknown Source)
    at jadclipse.JadDecompiler.decompile(JadDecompiler.java:161)
    at jadclipse.JadDecompiler.decompileFromArchive(JadDecompiler.java:218)
    at jadclipse.JadclipseSourceMapper.findSource(JadclipseSourceMapper.java:91)
    at jadclipse.JadclipseSourceMapper.findSource(JadclipseSourceMapper.java:71)
    at jadclipse.JadclipseClassFileEditor.doOpenBuffer(JadclipseClassFileEditor.java:109)
    at jadclipse.JadclipseClassFileEditor.doSetInput(JadclipseClassFileEditor.java:68)
    at jadclipse.JadclipseActionBarContributor$DecompileAction.run(JadclipseActionBarContributor.java:39)
    at org.eclipse.jface.action.Action.runWithEvent(Action.java:996)
    at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:538)
    at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:488)
    at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:400)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3125)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2758)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1699)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:367)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
    at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103)
    at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:226)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:163)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334)
    at org.eclipse.core.launcher.Main.basicRun(Main.java:278)
    at org.eclipse.core.launcher.Main.run(Main.java:973)
    at org.eclipse.core.launcher.Main.main(Main.java:948)

java.io.IOException: CreateProcess: jad -p -t4 -b -f -lnc -lradix10 -radix10 Directions.class error=2
    at java.lang.ProcessImpl.create(Native Method)
    at java.lang.ProcessImpl.<init>(Unknown Source)
    at java.lang.ProcessImpl.start(Unknown Source)
    at java.lang.ProcessBuilder.start(Unknown Source)
    at java.lang.Runtime.exec(Unknown Source)
    at jadclipse.JadDecompiler.decompile(JadDecompiler.java:161)
    at jadclipse.JadDecompiler.decompileFromArchive(JadDecompiler.java:218)
    at jadclipse.JadclipseSourceMapper.findSource(JadclipseSourceMapper.java:91)
    at jadclipse.JadclipseSourceMapper.findSource(JadclipseSourceMapper.java:71)
    at jadclipse.JadclipseClassFileEditor.doOpenBuffer(JadclipseClassFileEditor.java:109)
    at jadclipse.JadclipseClassFileEditor.doSetInput(JadclipseClassFileEditor.java:68)
    at jadclipse.JadclipseActionBarContributor$DecompileAction.run(JadclipseActionBarContributor.java:39)
    at org.eclipse.jface.action.Action.runWithEvent(Action.java:996)
    at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:538)
    at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:488)
    at org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:441)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3125)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2758)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1699)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:367)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
    at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103)
    at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:226)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:163)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334)
    at org.eclipse.core.launcher.Main.basicRun(Main.java:278)
    at org.eclipse.core.launcher.Main.run(Main.java:973)
    at org.eclipse.core.launcher.Main.main(Main.java:948)

java.io.IOException: CreateProcess: jad -p -t4 -b -f -lnc -lradix10 -radix10 Directions.class error=2
    at java.lang.ProcessImpl.create(Native Method)
    at java.lang.ProcessImpl.<init>(Unknown Source)
    at java.lang.ProcessImpl.start(Unknown Source)
    at java.lang.ProcessBuilder.start(Unknown Source)
    at java.lang.Runtime.exec(Unknown Source)
    at jadclipse.JadDecompiler.decompile(JadDecompiler.java:161)
    at jadclipse.JadDecompiler.decompileFromArchive(JadDecompiler.java:218)
    at jadclipse.JadclipseSourceMapper.findSource(JadclipseSourceMapper.java:91)
    at jadclipse.JadclipseSourceMapper.findSource(JadclipseSourceMapper.java:71)
    at jadclipse.JadclipseClassFileEditor.doOpenBuffer(JadclipseClassFileEditor.java:109)
    at jadclipse.JadclipseClassFileEditor.doSetInput(JadclipseClassFileEditor.java:68)
    at jadclipse.JadclipseActionBarContributor$DecompileAction.run(JadclipseActionBarContributor.java:39)
    at org.eclipse.jface.action.Action.runWithEvent(Action.java:996)
    at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:538)
    at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:488)
    at org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:441)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3125)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2758)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1699)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:367)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
    at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103)
    at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:226)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:163)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334)
    at org.eclipse.core.launcher.Main.basicRun(Main.java:278)
    at org.eclipse.core.launcher.Main.run(Main.java:973)
    at org.eclipse.core.launcher.Main.main(Main.java:948)

java.io.IOException: CreateProcess: jad -p -t4 -b -f -lnc -lradix10 -radix10 Directions.class error=2
    at java.lang.ProcessImpl.create(Native Method)
    at java.lang.ProcessImpl.<init>(Unknown Source)
    at java.lang.ProcessImpl.start(Unknown Source)
    at java.lang.ProcessBuilder.start(Unknown Source)
    at java.lang.Runtime.exec(Unknown Source)
    at jadclipse.JadDecompiler.decompile(JadDecompiler.java:161)
    at jadclipse.JadDecompiler.decompileFromArchive(JadDecompiler.java:218)
    at jadclipse.JadclipseSourceMapper.findSource(JadclipseSourceMapper.java:91)
    at jadclipse.JadclipseSourceMapper.findSource(JadclipseSourceMapper.java:71)
    at jadclipse.JadclipseClassFileEditor.doOpenBuffer(JadclipseClassFileEditor.java:109)
    at jadclipse.JadclipseClassFileEditor.doSetInput(JadclipseClassFileEditor.java:68)
    at jadclipse.JadclipseActionBarContributor$DecompileAction.run(JadclipseActionBarContributor.java:39)
    at org.eclipse.jface.action.Action.runWithEvent(Action.java:996)
    at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:538)
    at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:488)
    at org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:441)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3125)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2758)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1699)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:367)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
    at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103)
    at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:226)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:163)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334)
    at org.eclipse.core.launcher.Main.basicRun(Main.java:278)
    at org.eclipse.core.launcher.Main.run(Main.java:973)
    at org.eclipse.core.launcher.Main.main(Main.java:948)

********************************/
</code>

any help with this issue whould be greatly appreciated.