I just recently wrestled with my little smb setup here to tighten the grip on who might be accessing my share. My intention is to simply share my own smb share I have running in VmWare with my XP host. My XP host is logged into a domain server not to the local machine. The Linux I have installed in VmWare is FC5 running from USB drive and using the NAT networking setting. My company has blocked DHCP to only those machines authenticated with by the domain server. I originally used the KDE Control Center to setup my smb sharing homes.