[HECnet] Licensing problem.

Hi, I've had my machine (TARDIS) offline for a while due to moving house, being hospitalised and then going on holiday. So, now I've come to restart the thing, it seems my licenses have expired, which shouldn't have happened until September. Could this be down to moving the simh instance to a new machine and giving it a new ip address? Anyway, where do i get the licenses from again? All the addresses I had either don't work, or give me completely unrelated websites. Tony (probably being stupid again)