Ok, today was a horrible day, seeing how i was getting hte model errors, cant rename file to file error, missing data errors while trying to d/l the new patch.
After bout 5 hrs of head pains I got the idea to try and reinstall B/C from downloading from worldofwarcraft.com!
I was like..pshhhh it wont work!
I d/l'ed the file (1gig + ) and did the patch from there, and moments later, im playing wow like nothing happened!
So if you are stuck like i am with NO discs (just moved and forgot a few things DOH) and having wow errors with the patch, try to d/l the trail and play from there, it worked for me and maybe it will help someone!