He mentioned a little earlier that some of the buffing stuff if you're using WotLK branch on live didn't work.
I should have clarified... I'm not using the WotLK client on live, it's not displaying buffs/debuffs on beta PTR server. On live I haven't updated my AGUF for quite some time (I'm a firm believer in 'If it's not broke, don't fix it'), and it works fine. Unfortunately, I couldn't use the Live AGUF with my DK as it was severely borked. So I updated the client for my beta, and everything looks fine, but buffs/debuffs don't show.