Windows XP Server not logging

I have installed three windows on my machine. Windows 98 on c Drive, Windows XP Professional on D drive (NTFS) and Windows XP Server 2003 on Drive E (NTFS). I have taken ghost images of these all drives for my lab. When i run my ghost image of xp server on other machines in the lab and wanted to log on its not working i mean to say not logging me. I will be very thankful, if any body will help me in this regard.
Thanks alot in advance.