For the configuration of the VM what is the make/model of the network card you selected? The VM network interface often is an AMD, or an intel pro. The options for the VM interface are not directly related to the network interface on the host system.
Look under device manager to see whether you have a PCI device for which you do not have a driver, or under the network adapters, do you have anything there?
Depending on what drivers you need, you should be able to find them at the vendor's site. Intel for intel network interface, linksys for linksys, etc. I believe the common AMD network interface, is included in the windows drivers list and would be found by the OS.
Without knowing which network adapter your VM uses, there is little more that I can do.
