Legacy chipset drivers

Where can I get legacy chipset drivers? I'm trying to find legacy drivers for an Intel 915G chipset and I don't seem to be having any luck. Any suggestions?

I looked there first. I don't see legacy drivers there. . only the newest versions. Did I miss a link to the legacy drivers?

The chipset driver was updated for this machine some months back. The latest drivers are 'express' drivers. The system now sees the PCI slots on the mobo as PCI express slots and I can't get the new vid card to perform properly. I wanted to try installing pre-'express' drivers in it to see if I can get the system to see the PCI slot as PCI and not as PCI express.

The box has this motherboard in it:
http://h10025.www1.hp.com/ewfrf/wc [...] c=en&lc=en

Yes, PCI cards are still available, but they're not in the stores around me. I had to order this one over the internet. This is the card I have:

http://www.visiontek.com/products/ [...] O_PCI.html

It is definitely a PCI card and not a PCI express card.; and the mobo only has PCI slots. To start off, I installed the drivers that came on the CD with the card. I then updated the drivers to the latest drivers that were listed for XP for that card.

When I run CPUz, it tells me that the graphic interface is PCI express, and the card is giving dismal performance. I am trying to figure out why CPUz and the ATI Catalyst Control Center both think they're looking at a PCI express slot. I know the chipset drivers were updated a few months back so I figure that's where the fubar happened.