I found a neat trick on-line to get windows 7 to recognize the virtual network card it doesn’t have a default driver for in vmware server 1.0.10. You add the following line to the end of the .vmx config file, and it sees it as an intel e1000 card and installs the correct driver.
ethernet0.virtualDev = "e1000"
This is posted about in a few places, but here is a link to the one I found:
http://social.technet.microsoft.com/Forums/en-US/w7itprohardware/thread/5c74d385-98f9-47c8-962f-b0cfc47abadf