you are loading WOW via the loader. try executing WOW.EXE directly.
also, if you wish to use chinese wow to connect to the US server, you should replace the WOW.EXE from the chinese game with a WOW.EXE from the US game (otherwise the USA server will tell you the version is not right (there is a slight difference in version builds between the two, but it doesnt affect gameplay).
NOTE: make a backup of the chinese WOW.EXE before replacing it. you need it again when oyu need to patch the game, or the patcher will tell you something about an unrecognized version and version mismatch.
Come and join on Starcraft 2 as well =]