Setting up Mac OS X.4 Server as a PDC?

This is stressing me out... I installed Mac OS X.4 Server 8 times so far trying to get it to work as a PDC so I can bind WinXP clients to it. Once; I was able to get it to work once but then I made a tweak in the config and blew it up. I've followed the steps I did the one time I got the Mac OS X.4 Server running as a true PDC but I can't replicate the results. This is what I've done when it worked for a short amount of time. I've repeated these steps with failed results. Installed the OS on an Xserver (I've done it locally and remotely) enabling 1 NIC with DHCP then ran all updates and patches. Once fully patched setup NIC with static IP and pointed first DNS server to its IP. Setup DNS and tested forward and reverse name resolution. Setup DHCP and tested a client to see if DNS resolved correctly. Setup OpenDirectory as Master and rebooted the server. Tested on Mac OS X.4 client that Kerberos and OpenDirectory are working 100%. Enabled AFP then rebooted the server. Under Windows set it as PDC changed the Description (File and Print Server), Name (FileServer), Domain (SOMETHING), and enabled WINS. Then started the service and rebooted. Once, I was able to bind to the domain using a WinXP machine; once. I bound to the domain both ways VIA clicking Change or the Network ID wizard under My Computer Properties. I've even ipconfig/flushdns, ipconfig/release, ipconfig/renew, forced the WinXP client to enable NetBIOS over TCP/IP. I'm going crazy because this isn't making any logical sense. I can build a Samba machine using a very stripped down command line only install of Linux but I can't using Apple's pretty graphic interface.