X and Fluxbox :: Mach64 ati rage pro AGP 1x/2x

Ho ho ho,
after a short stint with Vector (schmector) Linux I am back to DSL
with the following question:
Can I run tuxracer on a P2-450 Mhz pentium with 448Mb ram
and a 8Mb  Mach64 ati rage pro AGP 1x/2x graphics card?
How can I do that?
What are the optimal settings for that card?
In which file? XF86conf, Xorg.conf, XF86config-4  etc?
Are there other games of that kind, that could get the kids interested in Unix?

Happy Christmas!
Bandito