jar not including images and html file

[Christiane Guise]

I have a project with GUI which includes a folder myFiles with images and Html
all work fine but when I click on the jar the GUI starts but with no images
I do not know where I go wrong
the project is as follow

BookOfChanges
          src

[Christiane Guise]

Sorry here is the project in brief as it is much longer the aim is to be able to put it on a cd so it can run outside eclipse
bookProject
src
           package myBook
                  main.class
           myFiles
                  book.gif

all appear in a GUI
      
this is y build.xml
<?xml version="1.0" encoding="UTF-8" ?>
<project default="jar">

    <!-- Compile and zip the source code into a jar -->
    <target name="jar">

        <!-- Make the folders we'll need -->
        <mkdir dir="ant"/>
        <mkdir dir="work"/>

        <!--
        Compile all the .java files into .class files

        debug = yes        Include debug information in the .class files
        destdir            Where to put the .class files
        source and target  Use Java version 1.6.0_06
        -->
        <javac
            debug="yes"
            destdir="ant"
            source="1.6"
            target="1.6">

            <!-- Folders that have trees of .java files to compile -->
            <src path="src"/>
        </javac>
  <!--
        Zip files together to make a jar

        jarfile          Where to make the .jar file, overwrite something there
        basedir          Find the files to zip in the jar here
        filesonly = yes  Store only file entries
        -->

        <jar
            jarfile="work/BookProject.jar"
            basedir="ant"
            filesonly="yes"
       >
            
            <!-- Write a manifest inside the jar -->
            <manifest>

                <!-- The class Java will run when the user double-clicks the jar -->
                <attribute name="Main-Class" value="myBook.Main"/>
                               
            </manifest>
        </jar>
    </target>
</project>

the problem is that in the Work folder containing the BookProject.jar (the executable jar)
the GUI works but without images while the application works very well with images
I have tried so many things I hope you can help me