Cloning SLES and registration

[mla_hm]

We have 8 SLES 10 SP2 which are cloned from a base installation and optimized for Lotus Domino.

The problem is when i try to register the systems. On the registration page i supplied my email, the activation code and system name.
The problem is that when i move on to next system it "overwrites" the last system in Novell Customer Center.

I realised that the system ID was identical for all systems, so the question is how do i change or generate the system ID?