first thing to consider is that thought you can move machines to a new EPO server (as long as they are on version 6.2+), you can't move users - so you will loose all your user assignments and passwords.
Can you confirm the version of EEPC - 1.02 sounds like the EEAdmin extension, it should be v6 or 7...
Sorry! You're right!
1.0.2 is the Endpoint Encryption Agent for Windows.
My old Endpoint Encryption PC is 6.0.2
Should I upgrade to 6.2+ first on the old server?
Just install a the new extension should do it?
You need to upgrade all your clients before moving them - EEPC6.0 wont recreate keys in a new EPO server, so you will loose all your recovery infromation.