How to extract files from a Norton Ghost archive... without Norton Ghost.
I do not think you can do this without Norton Ghost. BUT you can do this without installing Norton Ghost on your computer. If you have a Ghost 9 CD, you can extract "PQIBrowser.exe" and "PQIBrowser.exe.manifest" from the setup package. When you run this program, it will let you browse the contents of a drive image and even copy files out.
Hope that helps.
PS: for Ghost 15, the file is called v2iBrowser.exe
If it is a compressed drive image, you'll need Ghost Explorer (Ghostexp.exe) for that.