don't have a torrent answer for you but try this article and the comments should help..
1. Hamachi to vpn btw the two computers or Dynamic DNS to point to outside ex. DynDNS.
2. Articel on alliance:
Featured Download: Alliance Creates Private P2P File-Sharing Networks
Featured Download: Alliance Creates Private P2P File-Sharing Networks
3. direct connect (or DC++
4. WASTE (gone now)
5. Retroshare
RetroShare official website
6. Allpeers for firefox