Should be pretty quick. Download a version of Daemon Tools that works with Win7. I think all you need is the trial/free version.
http://www.daemon-tools.cc/eng/downloads It'll act as if you were running the discs from your CD/DVD rom. There's probably some sort of readme file that came with the titanium torrent that kind of explains this better. It basically involves mounting each disc within Daemon and then running it.