Client can't see server over VPN

I've got a customer that is using a Netware 4.x server & NT4 workstations connected to the internet thru a Sonicwall Soho3. The Sonicwall has a VPN server built in and properly set up. At a satellite office there are 2 Windows NT4 workstations that need to run a program off the Netware 4.x server. I've installed the Sonicwall VPN client properly and I'm able to ping everything thru the VPN except for the server. I can ping the server from a PC on its LAN, so I know that's working. The only thing I can find on Sonicwall's support site is saying that IPX isn't supported thru it's VPN. I've got IP working on the server, as stated earlier. The support document also says I should install a file called SLPDA.nlm. I can't find this file available for download anywhere. Am I going in the wrong direction for this? Can someone give me a hand, please?

I think that file is in Netware 5.x and later, I seem to remeber seeing it somewhere! Does Netbios need to be enabled in order to see the server??

I don't think netbios would work. Go to Novell Client Properties->Service Location->and clieck on Static, that will help.