I'm still a NT4 user. All I can say is that the OS is not P&P, and you need to find the drivers.
Auctually, Windows 2K drivers never worked on my NT machine. Windows 2000 is far more advanced then NT4 was. I just never found the point.
If it helps, right click on the device in device manager, and click Properties or Edit. There should be somekind of options to set.
Some hints, make sure that it is upgraded to the latest service pack. That will help. Try plugging it into another system and find out the make and model of the PCMCIA card, then look up a Windows NT compatible card. The last thing (but sad) is to upgrade to a newer OS.
Luckly, im all covered with Windows 7