Sorry for joining the party late
Carlos, I talked to Bruno and added some fixes to the SL 1.0 branch [1]. If you want you can give them a try and let us know if they work for you.
[1] [https://gwt-widget.svn.sourceforge.net/svnroot/gwt-widget/server/branches/1.0][1]
[1]: https://gwt-widget.svn.sourceforge.net/svnroot/gwt-widget/server/branches/1.0.
