you did download the torrent? because a torrent requires a program called Utorrent before it will actually download, so to speak. if you didn't, download the program. ( I would link you, but whenever I go to the site it turns Dutch so I wont take any chances)
if you did, you should try re-downloading the game, because as far as I know, every patch gets implented into the games exe, meaning you shouldn't have to update at all when you newly downloaded it.
sorry for my poor english ;S