Ghost images are a VERY VERY bad way to try to save yourself some installation time.
The ONLY way to successfully "Ghost" a system is to create a BASE install with NO applications, do NOT join it to the domain, and then use the utility SysPrep to prepare the install for system change. When sysprep asks for a reboot, you shut down, and STOP. Make an image of that file, and then you ghost that to your systems, and then utilize Unattended Install to complete the process of your software installations. It's very complex to set up, and you will want to test it a few times before you actually deploy it.
Here are some things that Norton Ghost does not admit to, but are facts. When you Ghost from one machine to another, your SID files are duplicated, so when you open applications from one machine, they will first try to open them from accross the nework on the original machine, thus causeing a great amount of network traffic.
Ghosting is NICE in theory, but on a large scale, it does not work. You will spend MUCH more man hours trouble shooting problems, and then end up re-building your PC's.
Been there, done that!
-SWarrior