Here's some more Radeon 9500 modding goodies I found @ Rage3D's forum.

Updated drivers for Radeon 9500->9700 and 9500->9800 can be found on my site. Working on a unified driver for 9500/9700->9800 right now. Catalyst 3.2 - v.6.14.01.6307: wxp-w2k-radeon-7-84-030228a1-008040c-efg.exe 5.87 MB

Patched ati2mtag.sys 280 KB (9500 -> 9700) Patched ati2mtag.sys 280 KB (9500 -> 9800) Patched ati2mtag.sys 280 KB (unified driver for 9500/9500 PRO/9700 and 9700 PRO -> 9800) BETA Patched ati2mtag.sys 280 KB (9500 -> 9800 driver tweaks - does not enable pipelines) BETA

See the FAQ at the bottom of the page for more info on the 9800 driver hack.

Rage3D forum