intel graphics 82845g

I had trouble getting vista Beta 2 to load the correct driver for an Intel Graphic 82845G card.
At first, both in WinPE and Vista, it loads the default Sandard VGA Display adapter which makes it looks like #$%#%.
Then, if i enter the Correct driver into the installaion of vista (Using Driver Path on the unattend.xml file, or Offline installing it through PEIMG /INF command), it first, load the Standard VGA, and if i choose to upgrade the driver automatically, it finds and installs the correct driver.
How can i automate it for use throughout my organization (I only having troubles with this specific driver which Vista is convinced that it's a "Standard VGA Adapter)
Or.