There are two steps. One is to zip the .class file into the .mdx file by hand. Second is to edit the extension in VASSAL, right-click on the module folder and select "Add Imported Class" with the name of the class you wrote. The buildFile you quoted looks like you didn't do the second step. If it's all set up right, you should see entries like
<VASSAL.build.module.ExtensionElement target="VASSAL.build.module.Map:"> in the buildFile. rk [Non-text portions of this message have been removed] ------------------------ Yahoo! Groups Sponsor --------------------~--> Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/IMSolB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/vassalengine/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
