Hi there,
There are probably extremely simple ways of doing this that I'm overlooking, but here's my two cents...

You could set up a peer-to-peer VPN connection (based on PPTP) between your notebook and the Windows NT workstation. WinNT Workstation has the capability to provide a single VPN connection service (with WinNT Server, you get many more connections!).
Once you have the VPN service up and running on your workstation, just connect to the workstation from your notebook using a PPTP client (if your notebook is running windows, just use the built-in client). You should then have access to your entire network, including the e-smith server, etc., from Network Neighborhood on your notebook.
Alternatively, you could set up IP routing software on the workstation, which essentially does the same thing. The VPN solution might be a little easier to implement, however.
Cheers