One will display all categories and forums and one will display just the categories with the total number of forums, threads and posts within that category. The end user can choose what language to use. Default language is set in the config file. Admin section is english only to keep the language file size small. Assign read and write privileges to your forum for certain groups.
Users can belong to multiple groups.
This allows for a highly flexible system for setting up who can access what forums. This also allows for true private forums . Users that do not have read access to forums will not even know they exist. Full moderation Post approval can be turned on or off on a board by board basis. Posts waiting to be approved will only be visible to Admins and that forum's moderator.