The VIA VT6306 firewire chip has drivers built in to XP.
Can you tell what chip you have?
I've never seen a Firewire card that needed special drivers with XP (I've used TI-, Agere-, and, I believe, Via-based cards). Most boards have "OpenHCI-compliant" chips and use the built-in XP drivers.
Be sure that the Firewire card is fully seated. Is it showing up in the Device Manager?
Also, try moving the PCI card to a different slot. This has worked for some people.
Stolen from a
three year old UseNet post:
......
A quick glance at the latest chipset offerings show that the makers at
least on paper, say that they've got a high level of compatibliity nowadays.
.......
1) Some cards come with full OHCI auto-detect-in-OS, some require a CD
driver to be installed.
You can easily check this by opening the box and seeing if there's a
drivers CD in the box. Win98SE through XP should not need any drivers
at all for the former class of cards. The CompUSA card falls into the
former category, requiring no drivers to install.
........
6) Keep the receipt and return the baby if it doesn't work easily. They
should be plug-&-play, like the CompUSA card I got, so if you're fooling
around with it longer than a few minutes, it's not a good thing. I've
got my system maxed out with SCSI, Hollywood+, ATI All-in-wonder, sound,
modem, etc. so most other systems should have IRQs/memory
space/addresses whatever free to handle one itsy-bitsy IEEE 1394 card.