As far as I know you can only access 1 work group at a time.
you can assign static IP's to all machines and build them into your DNS tables, this should allow you to see all of the computers, but they would all have to be assigned to the same work group, I think.
julius.gazdag@centurytel.com
Im a Telco guy, I can get you where you want to go, but I can't guarantee it will work when you get there!