[Joke]

The long and the short is: download the XP version of the driver, then unpack it and let it give you the error saying that you need to be running Windows 2K/XP and stop.

Then go into the folder it unpacked to (default is c:\ATI\Support\9_3_xp32_dd\ though the last folder will be different if you use the 64 bit version) and right click the Setup application, go down the menu and select properties.

Then click the Compatibility tab and check the first box to run it in compatibility mode as Windows XP (Service Pack 3), click Apply and OK.

Then you can double click Setup, it'll run through the install and restart the machine, that should be you sorted with the driver installed, if not then I apologize because it worked for me!