p2p programs should not cost any money. There's torrent programs out there for free. That sounds like a scam to me. If I were you, (a) I'd report them, (b) report & cancel via your credit card company. See the links at top of following link: Known Scam Sites (click on link) (sorry the sites listed does not include torrent scam programs since this is the gnutella network forums.)

My favourite torrent program is Azureus. But there's others out there. I haven't used torrents for ages & am not very knowledgable about them. There are torrent sites out there that you can search & find the file you're after, then download the torrent seed. Then open that seed with the torrent program. LW has torrent abilities but these are a little limited. Some torrent sites do not recognise LW. Also, there's more than one type of torrent protocol.

Check BitTorrent client - Wikipedia, the free encyclopedia & see the very bottom of the page where it says -> Current BitTorrent Search Engines & click on that link. BTW some of the programs listed on this link I've given are not full time bit torrent programs.