It is of utter importance that anyone who wants to help out with translation for the project reads the information below.
First off, go to this page, and read it.
Second - we need to know for as certain as possible, what langauges were spoken by who, for each faction. Did the Priests speak Latin, or some other language? Did the nobles speak another language than the commoners? What language did they use when speaking to foreigners?
Do not begin translation of anything until you've got this sorted out for the language you're translating, or you might end up having your hard word ignored because of historical inaccuracy. Which would suck.
Thanks.