You're not going to like this, but try deleting all your add-ons (after backing them up) and reinstalling them manually through the Curse Client. This is easy and straightforward, and will ensure it matches up the add-ons you expect. Take this time to also check each add-on to see if the author has updated it for 3.0, because if they haven't, no amount of updater magic will save it. For major WoW version upgrades, this should be everyone's mode of operation anyway.
CC should have been released either A. Not at all, B. Ages ago before 3.0 so all the bugs could be worked out or C. After 3.0. It would have been better to let the WUA crash the server's every 5mins, at least that way sooner or later people would have their addon's updated and working the way they wanted them and their wouldn't be pressure on to make the CC perform for it's big day which it has clearly failed at.
I have read the reason why CC is needed but who ever is in charge of brining it to the mass's you have failed personaly (prove us all wrong and show us how CC is working brilliantly at its job). You should have knowen there was going to be problems with a new program and not taken away the working program (who instatues a program change and not leaves the door open for a roll back when things turn our exactly like this and the new program is suppose to work and doesnt) and put this beta (yeah right it feels more like an early alpha) program out there and said look go use it does nothing the old client does but its teh awesomeness.
It would have been better to let the WUA crash the server's every 5mins, at least that way sooner or later people would have their addon's updated and working the way they wanted them and their wouldn't be pressure on to make the CC perform for it's big day which it has clearly failed at.
...and better for Kaelten to have to pay enormous bandwidth bills than to take away everyone's shiny toy.
Is the server currently borked? Because I cant log in with the client at the moment. Just says unknown error... or perhaps its just the fact that there are hordes of people trying to update their addons :P
And what kind of frontpage is that on www.wowace.com? There should be an announcement for users who come here don't knowing whats going on. Not some walloftext for developers who know whats going on anyway.
This site and forum is for developers/power users, not for the average user - if you are "just" an average user, you should go to Curse/WoWInterface/WoWUI.
There is a feature i would like to see... when ever things are backed up (like patch days) if i attempt to force an update through the client, it currently shows a pop up saying "addon install queued" which quickly disappers with no way to tell if the client still intends to do what you asked it to...
could we possibly get a visble list for this "install queue"