Whoa! Torrent? You mean you pirated it (although I guess it can't be pirated when you can get it for free from Rockstar).
I wouldn't trust the torrent version. It might even have a virus in it. Go to Rockstar's site and download it from there. I think the torrent is possibly why it won't work.
Get the official free version from Rockstar and that should hopefully fix your problems. Talking about obtaining programs from torrents which results in pirating is not condoned here.