either restore the orginal realmlist.wtf and use the launcher, or enter a random email address in the login screen (eg. email@example.com) and random password, and the game should start downloading the patch by itself.
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