Figured you guys missed this way of doing it. It saves you a lot of time.
IF YOU HAVE PATCH 3.0.2 OR HIGHER:
1)If you have a retail account, just copy the folder and put the copy elsewhere.
2) Go into your wow Folder. And Find Patch.MPQ.
4)Run the Repair Utility
5) After checking the files it should tell you that Wow needs to backup to an older version follow the prompt and allow it to do so.
6) You now have World of Warcraft running at the first patch.
7) Patch up to the required Server Patch and follow the other Rules Above.