I'm wondering if this is the one, with the "Intel®; Graphics Media Accelerator 900":http://bd.asus.com/Barebone_PC/V_Series_2530L/VintagePH1/#specifications
And indeed, under the Download tab, it has Windows XP drivers, among others for the "Intel Graphics Adapter", but no Windows 7, neither even Vista. You can try to install the XP driver, after you set the Setup.exe in XP compatible mode.
But before you do that, maybe you should go into Windows Update. Sometimes it can find drivers, or updates to currently installed drivers. More on this:http://windows.microsoft.com/en-US/windows7/Update-a-driver-for-hardware-that-isnt-working-properly
(Click on the blue "To update drivers using Windows Update")
If it doesn't help, then Intel's webpage is the next stop.