Thank you wuzfuzzy and palvaran;
I have read that document, but my case is that I do not have the tools & drivers CD, and in turn, cannot solve the mystery of what drivers I need to include in the WinPE image.
If either of you know what drivers I need for a SunFire x2100 NIC (note: this is not the M2 model) that's all I'm really after here. I'm well aware of how to go about building WinPE images and adding drivers in my environment. The matter seems to be finding the right bleeding driver.
Thank you for your time,
-Aaron