Do you know much about Device/Hardware IDs. If so, use pcidatabase.com and figure out what the exact manufacturer of the device and the exact device name and google the newest driver for it.
Are you having problems that would be addressed by updating those particular drivers? Maybe they are all at the latest level already. I'm just saying, if you're not having problems why update?
They have an exclamation point indicating that they need to be updated and when I couldn't I started a thread, but I've been out of town without my computer so I'm not too worried about it.