Windows 7 is different than windows xp, in that every accounts aren t administrators account by default. I think your problem is you don t have permissions to modify files in your wow folder. So the game isn t creating anything and that s also why you can t patch it correctly.
What you need to do is either turn off the UAC of windows or give file edit permissions of the wow folder to your user.
I don t have windows 7 so i can't describe the process but your favourite search engine will surely point you to a couple hundred thousands results.
When you log on a realm type "/join english
" to get in touch with the community members.
WoW English/Chinese glossary
(2000+ translated words) found on wow-in-chinese.jfs-web.chEnglish speakers are consolidating on the same realm for Cataclysm check this thread