Troubleshooting this starts with making sure TCP/IP is loaded on the Netware server and doing it's thing.
At the netware server console, type CONFIG, and hit enter. This will display what protocols are running on the server, and will display the IP address the NW server. Check for obvious mistakes like an incorrect netmask, duplicate IP address, etc. If IP is not bound to any network cards, there's the first thing to fix.
Armed with the IP address of the NetWare server, try to PING it from your Win2K workstation: PING 192.168.1.1 (or whatever the address is). If this fails, the problem is likely hardware -- bad cable, faulty hub/switch port, etc.
There's alos a ping utility at the NetWare server. Again at the console prompt, type PING 192.168.1.2 (or any valid address).
If the PING on the dotted ip address works, either add the server's host name to your DNS (or ask the network admin to), or add an entry for it to your HOSTS file on the workstation. The file is named 'hosts', no extention, and is in C:\WINNT\SYSTEM32\DRIVERS\ETC.
HTH