I'm not completely sure but I think you have to email the devs and ask them to switch it onto your new idevice !!-Chxo-!! $//-Crusade-//$
There's a forum on it I think and u gotta have the original iPod in order to do it cus u need some code
email the devs at device_transfers@athinkingape.com and state your username, country/location, acc creation date, last login date, date if last purchase (if any) and udid of both old and new iPod. Hope this helps. There is also a thread stickied outlining this.
i posted the wrong link.. THERE IS NO NEED OF EMAILING THE DEVS, THATS WHY THEY CREATED THIS PAGE U IDIOTS! http://www.kingdomsatwar.com/transfer