As reported by adminsu25 in another post... It's available here.
NOVELL: Downloads - Novell Novell Open Workgroup Suite Small Edition GroupWise 8 Update eMedia Kit

As you can see from the Novell Open Workgroup Suite Small Business Edition GroupWise 8 Updater - Download and Installation, instructions are minimal.

At this time I realize there is limited information available but the one question that comes to mind is this: On a new NOWS SBE 2 install, can I install GroupWise 8 without having first installed GroupWise 7?

Perhaps someone from Novell can comment...