The Isis Adventure

Hi there -
I have recently sold my Isis on ebay, and am now being asked about the fact it's already registered (something I can't even remember doing, but have managed to log in so clearly I did!)
Is there a way to reregister it under a new name? As I note the only fields that cannot be altered under 'my details' on the isis page are the name and email address, and this is obviously not a possibility for me to pass on.
Any help would be much appreciated
Thanks

similar topics were discussed here already, check out for example this topic:
http://www.isisadventure.co.uk/forum/viewtopic.php?f=57&t=3646

I think the point is, that the buyer should create a new account for himself, and re-register the puzzle

The buyer will need to take out and pay for an annual membership of the Isis Adventure Series.

Once they have done this they can then e-mail sonic games, who will re-gregister the puzzle to their new account.