WOA!!! I finally got this to work!!!!!
I have Edgy 6.10 with the -generic kernel.
The KEY enabler was Ally_S 's hacked gpart (go to her post here http://www.ubuntuforums.org/showthre...?t=7200&page=7)
After following these directions, the mach64 drivers compiled successfully.
I still didn't get DRI, because I had to modprobe the mach64 (see the troubleshooting section at the top of this how-to).
I also had to reconfigure xorg to permanently lower the resolution to 1024x768 with bit depth of 16.
After reboot....got this:
3D Screensavers are running....oh how much adrenaline can we still draw from these old clunkers?
glxinfo | grep direct
libGL warning: 3D driver claims to not support visual 0x4b
direct rendering: Yes