Trying to Image Hard Drive on Windows 7 System with Ghost 10.0

I would like to make an image of my hard drive on DVD-R discs, but my system is running Windows 7 Professional Ultimate 64 bit versionand I only have an old copy of Norton Ghost 10.0.  I can't even load it on my computer and I can' t find any  information about downloading an upgrade to permit this. I need to know if there is such a thing and How to download it.