Yeah welcome man..
If you have tried placing the client computer into the dmz.. then the torrent file might be dead.. it happens.. Make sure that you have the correct address in the dmz.. start-run- type cmd- then type ipconfig .. that will show you what your current ip address is.. make sure that it matches the one that is entered on to the router for the dmz.. If you can get that working then the next part is fairly easy..
http://forums.degreez.net/viewtopic.php?t=31
that will give you a pretty good guide on how to configure the 624 to allow bittornado in.. also make sure that your firewall has the correct settings..