I have an ISO of (happens to be) Norton Ghost v8, I tested the CD it boots.

I don't know if I can link to it the iso, but i've tried to use unetbootin to put it to usb flash, and I see the files like ubnkern ubninit at the root of the usb flash drive.

unetbootin completes making the usb flash drive given the iso.

the boot process gets to the unetbootin screen, then says /ubnkern initrd=/ubninit

and it doesn't go further.