Ok guys, I got a similar problem, and solved it.
I got some new computers with intel I217-LM ethernet controller. And I had to make it work with a Windows vista (6.1) 32bit WinPE .
So I downloaded the vista driver for I210 ethernet controller, extracted all files from the exe using winrar, then I edited the e1r6032.inf file from folder PRO1000\Win32\NDIS61 .
in the [Intel.NTx86.6.0.1] section I added:
%E153ANC.DeviceDesc% = E1533.6.0.1, PCI\VEN_8086&DEV_153A&SUBSYS_1825103C
and in the [Strings] sections:
E153ANC.DeviceDesc = "Intel(R) I217-LM Gigabit Network Connection"
What it does is use the intel i210 ethernet controller driver for the i217-LM device. I had to look up the device id in Windows, to make it match. So if you plan to use this method, check the device id of your network card first.