Just stick in an Ubuntu live CD and an external disk, and you can boot to the CD then do a binary copy if that is all you want to do. You end up with a bit-copy of the disk either to another drive, or to a data file on a drive. Since the PC is booted to a different O/S and the windows file system is not mounted and no windows executables are running, copying is clean and there are no "busy" files.
google LINUX imaging software, there are even custom-made ISOs you can download for purposes of backup/restore any disk to any target.
I don't keep up with all the flavors of ghost, so can't tell you what version(s) support AHCI, but I am sure that a simple call to the 800 number will get you the tech info, plus discounted upgrade price.