Kaletonto, although I have not used IBM Rescue and Recovery myself, such utilities are commonly provided by the manufacturer of the PC to restore the machine to its original ‘factory fresh’ state (which, obviously, does not include your own personal data files and any applications you have installed).

Ghost 10, in contrast, is intended to restore the PC to the point-in-time at which the backup image (aka “recovery point”) was generated for one or more drives (aka partitions).  You would be well advised to use Ghost 10 on a regular basis as a core component of your backup strategy.