Weird problem.
 

Alright, after I patched WoW today it gave the standard "Interface folder is out of date" crud so i decided to click delete to try something new out.

Came here downloaded Insomniax's pack and now i load WoW, and my interface won't even load, custom that is. There's no add on's button anymore so I don't know what's going on here. Is there a way to fix this without reinstalling? Because that hour of installation doesn't sound to appealing at the moment.

Edit//

Fixed by clearing my interface again, restarting the game, using WoWtoc to convert the files in insomniax version numbers. *slaps face* I feel like a moron.