Normally I can use barts network boot disk to boot up then map a drive, then i ghost over the network, but now that the DC is running win2k3 i cant. Ive tried changing some security settings in policies but still no luck. Anyone got any ideas??

If a domain controller was added then it's most likely a security issue, what I'd do is add an a user account to the DC and give it full access to the file share your using. All you need to do is figure out how to do is 'logon' with this user in the boot disk, I know you can do it with the standard net.exe in XP.

Are you using TCP/IP or NETBEUI to connect? You may need to enable netbios over tcp/ip or add NETBEUI if you still can in 2003... What about DHCP? Or you need to put a hole in ISA server... It depends on which network protocols and services you have installed on the server.