For those who need access to GroupWise 8 install media, here's a couple of links to pages in archive.org with the software you need.  It should be noted that this is for those of us can legally use the software because they own a license.  I recommend that you run it on Windows Server 2003 as running on NetWare or 32-bit Linux of any flavor makes it a casualty of the 2038 problem. 

• Unfortunately I cannot provide a link to Windows Server 2003 or license keys, you'll need to source those on your own (hint: It's archived online)
• GroupWise 8.0 Server Software for Windows, Linux, and NetWare
• eDirectory 8.8 for Windows and Linux (required as GroupWise stores its information in eDirectory)
• Novell Cleint 4.91 for Windows XP/Server 2003
• Archive of Novell Client Software

I hope that by centralizing these links that for those who still need this stuff that it helps you in some way.