Weaver Xtreme supports over 20 languages for the visitor side already using standard WordPress translation methods.
Most of the translation come directly from Weaver’s language files, but some also are included in the standard WordPress translation files.
So you shouldn’t have to do any of your own translations.
There are tools / plugins that can help manage multilingual sites. A google search or a search of past topics about this on this forum should be able to help you with that.