Thanks EdT for your answers.
This is true, I'm confused with the two product. I used Norton Ghost some years ago and now in need to define a backup my customer.
Ghost Solution Suite seem to be the product I need, but my needs are quite simple.
Ghost Solution Suite is it not much for my problem? May I will buy a Ferrari where I just need a 2CV (sorry I'm French )?
May be 1 Norton ghost per PC is enough?