3
I know theres on available as I came accross one the otherday, but can't for the life remember where the dowload link is
It was a bit torrent module where users added there own trackers. If i find it again I will let you know
I also don't think the link to the site you posted has a torrent module, Looks like hes just got some other php bit torrent page as a custom block. you could always ask the webmaster on that site about it.