No one here will be offering any sort of help when it comes to downloaded editions of the game. If you want to play, you can't grab the game from a torrent, you'll need to get it fresh out of the box. The main reason being that this project is able to avoid any sort of litigious retaliation by not distributing files for free or leading anyone to any methods for doing so.
However, we can certainly help you with information on where to
purchase a copy of Titanium.
Check this thread for details.