After using Ghost to backup a partition/disk (primarily operation system or data), you may encounter some problems like this: forgot to include some files, need to remove some unnecessary files, or some files should not have been backup, and so on. Similarly, if a .gho file was downloaded from Internet, we may also need to modify some files inside or just extract some files for use.
The version names of Norton's security products are really mussy and ruleless (they just change them at will, is this for the purpose of confusing crackers?). But this does make too many users feel confused and puzzled (is my Norton product bought just a few days ago out of date?).