> I get a message stating that I need libGLcore.so.1.

Make sure you don't already have it.
su root
ldconfig -p|grep libGLcore.
Check the symlinks.

> But after much searching online

Never used Suse, but perhaps:
ftp://ftp.suse.com/pub/suse/i386/8.0/suse/x3d1/
Run those through rpmfind to see what's inside.

> RPM's have a lot of stupid problems

tarballs are unmaintainable.
Source RPMS seem to be the solution.