Found this using the info you provided about you MB earlier.This from the intel website for your MB model.
XP Pro
http://downloadcenter.intel.com/fil...+XP+Professional&lang=eng&strOSs=44&submit=Go!
XP Home
http://downloadcenter.intel.com/fil...+XP+Home+Edition&lang=eng&strOSs=45&submit=Go!
I didn't know your XP version so choose the appropriate link above.
These are all the drivers available for your MB including a BIOS update and your NIC (LAN) adapter.
According to Newegg you should have recieved a driver disk along with your MB but the drivers listed on the Intel web site are the very latest, use them.
In XP create a folder in C:\ and name it XP drivers or something like that. Then boot Win 7 and use your internet connection to download the drivers from Intel and save them to the folder you created in XP.
Alternatively save them to an appropriately sized thumb drive.
Install them in XP and that should take care of that.