The "How can I help?" FAQ doesn't mention translation with a single word... perhaps we should add something about that?
If you speak English as well as another language fluently, and you feel confident enough with your skills, you may help translate LiveJournal into other languages. See http://www.livejournal.com/translate/teams.bml for a list of all the translation teams that are currently established as well as their respective communities. Translators should also join lj_translate (http://www.livejournal.com/userinfo.bml?user=lj_translate) which is also where you should post if you wish to create a translation into a new language.