hypothetically, yes you need u-torrent (probably the fastest out there)
another good torrent engine is www.torrentz.com IMO
hypothetically the next step is to then search (via torrent engine), then DL the torrent, and then open it via u-torrent and it will DL.

edit: i am probably going to the rugby world cup too i forgot
might have to take my own advice up.. hah

yer get utorrent from http://www.utorrent.com/

then install hitting next>next>next

then locate the torrent file on the website and download that (it should only be ~20kb's) and then it will ask you what application you want to open this torrent file with and direct it to utorrent directory and that will then open up utorrent....

in utorrent and message box will pop up asking where ya want to download it so set a path and then hit OK and it will begin downloading...

Hypothetically speaking - thanks.
Cheers Al