Try deleting this entries.

Then, without restarting close device manager.
Sorry, but I'm not sure You'll have exactly the same names, because I must translate into English:
Run add new hardware from control panel.
Tell comp that you want to choose hardware from the list. Choose ethernet cards and your one.

If You can't find Your card, get back and choose drivers (but using "add hardware" from control panel) from the disk (you said You have such - of course for winXP) and intall them.

Restart, check if there's correct card in device manager.
I'll also try searching for drivers to Your card, so if it doesn't help,
write, giving the name of your drivers you have and email if possible and I will send You some other ones.