At a Boys & Girls Club, I have iTALC running on our XP SP3 machines - everything works by specifying an IP address, but no connection by host names (BGCFC-Lab-1, etc) which were created with FOG. It makes no difference whether I'm connected to the domain or not.
My DNS is running on an eBox server and seems to work just fine -- I can browse to Fog.BGCFC instead of using the Fog IP address.
Any suggestions on some things i could look into? Since all of the clients will be imaged regularly with the same image, a static IP won't be sufficient.