"Network Controller" driver missing for Latitude C610

Reinstalled Win2000 in Latitude C610 (4 years old) after hard drive replacement.  Orig. Dell driver disk has been lost.  Downloaded all drivers that seemed applicable from the Dell site by specifying the service tag of the computer.  Installed chipset update first, then video, audio, network.  I still have an entry under "other devices" in Device Manager for "Network Controller" with a question mark and yellow exclamation point next to it.  I've examined the original equipment list and do not see any network devices on it, although there is obviously a ethernet and modem connector on the side of the computer, and it worked fine before the hard drive crash.  According to the Device Manager, I have a 3com 3c920 Integrated Fast Ethernet Controller, which is listed under Network Adapters, so I went ahead and updated that driver.

 

My question is how can I find out what "Network Controller" it is finding that it cannot find a driver for?  As I said, the "Dell System Summary" for this machine doesn't give any information.  I attempted to install a DLINK Airplus G wireless cardbus adapter that was previously working in this computer, but it no longer detects the card, so I am thinking this must have something to do with the "Network Controller" thing.