How to change the buttons in menu.fla

hey all…

I need help to change the buttons layouts in the menu.fla… it should be very simpel, but when I change the movieclip itemClip_mc i get this error…

*Error Symbol=menu_mc, layer=Layer 1, frame=1:Line 1: The class or interface ‘menu’ could not be loaded.

Total ActionScript Errors: 1 Reported Errors: 1*

And I guess that the error have something to do with the xmlconnector …?
because I have placed the xmlconnector in the menu_mc…

please help me…

you can find the source files at this link…
[COLOR=#333333]http://sundhed.subsite.dk/group3/xmlmenu.rar[/COLOR]