There are two networking options for win4lin. The default is winsock, and the other one is vnet. Both of them require that your linux networking if working first.
If you have setup it with winsock, just try this.
You should get the info about eth0 and the IP number (e.g 220.127.116.11)
- Open a DOS Prompt
- Ping your Linux box IP
If the ping ok, thats mean your winsocknetworking is fine.
VNet need more setup. Tell me if you are not satisfied with the winsock.
By the way, why don't you ask to www.netraverse.com
The have mailing list as well as support forum.