Ouch, just installed the beta and getting all kind of problems. Some addons are linking to the wrong ones, some addons aren't showing up at all and some I am installing only to refresh and the updater still doesnt see that I have them.
Example of linking to the wrong thing ...
EQCompare linking to this:
http://www.wowinterface.com/downloads/info11245.html
Vista 64Bit SP2