Norton Ghost 14

Hi,

 

Recently bought Norton Ghost 14 only to Back Up important files.

 

I need to back up after doing the initial back up of these files on a weekly basis. An Incremental Backup.

 

This was advertised that Norton Ghost can do this but as far as I can see there is no Instruction or help in achieving this.

 

Is there a method purely to back up files that are new to the previous Back Up?