finding the right network driver for Optiplex GX260

I just recently purchased a Optiplex GX 260 without the drivers and utilities for it.  It has XP svc pack 2 installed.  I found a list on the device driver for Network Adapter but they do not match the downloads listed drivers & downloads on the Dell downloads for Network Drivers.  I do not know which network driver to download to install on this GX 260?