MarkoH01: This might be but the GOG version does not offer italian for part 1. Otherwise it would be in the changelogs.
But I wasn't talking about the Gog version. Among other things, the OP also asked if RA1 has ever been translated, and I think the answer is "probably yes".
I mean, you can easily find a few "Italian" copies on Ebay.it, but the thing is, I'm not sure how far the translation goes (some companies think that translating the manual - and nothing else - still counts as "game in Italian" and well, newsflash: it doesn't). So until I see a clear screenshot of the game with Italian subtitles I wouldn't feel comfortable to tell anyone to get it off Ebay.