I believe CGP 4.0b7 (release date 08/22/2002) runs on Mac OS X Server 10.2. I read some posts on the Stalker CGP Support mailing list. There are some people who have installed CGP on 10.2 and it run’s with little modifications. I asked the stalker sales about this and got this answer:
Please wait for the next beta release of CommuniGate Pro as the directory structure has changer under jaguar server.
Best Regards,
Robert Castillo
Sales Account Manager
Hope this helps.