Actually i never found out how to accomplish this. I think that the hash info includes the info of tracker(s) you originally specify, so you have to specify both trackers in the original torrent. However, it is possible (however quite devious) to get a torrent going between two or more trackers. heres a thread on that subject http://sourceforge.net/forum/message.php?msg_id=3196786. what i needed to know was that multi tracking between sites completely throws off the share ratio system for those sites and is therefore frowned upon on some sites. I saw on the home page of TTD that this topic was mentioned so please let me know if theres another way.