|"The operating system image you selected does not contain the necessary drivers for your network adapter|
That error message is pretty much self explanatory. If you compare the NIC on the unit you're trying to install the image on and the NIC on the unit you prepared the image from, I'll bet they're different.
If memory serves me, there is a way to have the image scan for hardware when it's deployed. Barring that, you'd have to create a new image with the PC in question.