I don't know much about setting it up as a PDC (having never tried it, lol), but have you tried the autoconfiguration program called SWAT? It runs from a web browser and there are lots of nice wizards and so on to help you set it up.
From memory, I think you can get to it by going to
http://localhost:901, but SWAT needs to be running as a service first (I use xinetd in SuSE to do it, although in other distros I think it may be different).
Sorry I don't know anything more, hopefully this may be of some use
P