Not sure what they're trying to pull at that link smarteyeball posted as there are no Windows 7 drivers
for the 9250 (or Vista for that matter), as AMD/ATI never made one. The last official driver
for that card is the Catalyst 6.11 XP driver, Catalyst
May have to use compatibility mode, Compatibility Mode
to get it to install.
I assume you're aware you still won't get aero or 'fancy' effects due to the 128MB limitation?
Actually nothing to due with the amount or memory on the card (128 MB is the minimum). It is due to the card only being DirectX 8.1, where Aero requires a minimum of DirectX 9.
Edit: just downloaded that file DriversCollection has and they really are playing with things. Checked the INF and there is zero reference to the 9250 (or any card made prior to the HD 2xxx series, so it won't even install.
For ATI/AMD cards there are 3 options for Windows 7 drivers,
1. Anything from the HD 2xxx series and up can use whatever is current (Catalyst 11.11 at this time).
2. Radeon 9500 up to the Radeon X1950 XTX, can use the last Vista legacy driver,
32 bit - ATI Catalyst
64 bit -http://support.amd.com/us/gpudownload/windows/Legacy/Pages/radeonaiw_vista64.aspx
3. Anything below the 9500, which is anything from the 9250 and down, can only use the above mentioned Catalyst 6.11 XP driver.