Print sharing on Xp machine

I have a domain with a Win2K server that all clients login to. I have a new client running XP w/SP1. I am attempting to share a printer (connected locally to this machine via parallel). Other machines in our domain that are XP or 2000 can connectto the printer, but all the Win98 machines receive a message saying “\\machine name is not accessible. The logon server cannot be found.”

Help!!