My error. I'm current as of the moment (enUS client, patched to CWOW's current version), the 3.01 patch won't help.
I need to download the necessary files to update my copy of the enUS client to Cata when necessary. I'm sure you'll do the usual outstanding job of helping us patch in what we need to play CWOW when those files become available.
Sorry about the ambiguity, I plead an insufficient amount of coffee at the time of posting.