It is those Ewoks.
The foul mouthed crud that flows out of their mouths would make a sailor blush.
Seriously though... I honestly don't recall hearing any bad language (from the game itself), but I do most of my gaming online, so I haven't had massive experience with the AI's communicative skills.
I know there isn't anything overtly bad, such as the f word, but there could very well be some damns or similar "bad" words in there.
I would think that unless we are talking a puritan family, that it would be just fine.
As for the versions being the same... I haven't played the PC version, but I think the only version that differs any is the PSP one, and that is because it has some extra game modes (though lacks online play).