NetXtreme II driver problems

I have a Precision Workstation with a Dell Broadcom NetXtreme II BCM57810 network adapter. The workstation is has two installations of Windows, which includes Windows 8.1 and Windows XP Professional x64 Edition. I was able to get the network adapter working perfectly under Windows 8.1, but I am having problems with the drivers under Windows XP. Since this is an older machine, I do not expect to get the full 10Gb/s speed due to CPU and PCI express limitations. At the very least I would like to try to get 3Gb/s or so out of the machine with this add-on network adapter.

I found Broadcom NetXtreme II drivers for Windows Server 2003 x64 Edition on another site. The installer did not work, but I was able to install the Ethernet drivers using the Device Manager. The problem is that the BCM57810 network adapters are showing up in the system devices section instead of the network adapters section. The NetXtreme II network adapters do not show up in the Control Panel under network connections. 

I found NetXtreme II drivers on the Dell support website, but the newer releases don't include drivers for Windows Server 2003. Is there a place where I can find an older version of the official release of the NetXtreme II drivers?  I checked both the Broadcom and QLogic sites with no luck.

Note: The NetXtreme 57xx is the onboard Gigabit Ethernet adapter.