Hi!
I can help in the brazilian portuguese if needed.
Regards.
I'm afraid this is a very old post and this version doesn't work with the TV Server.
If that is what you are using, then search for the "Self contained web interface" thread and there are instructions there for supplying translations.
If you are still using the built in TV engine then this plugin may work, but I don't think it;s been updated for a long time, so it may not.