Auditing computers imaged by Symantec Ghost 11

We were using Symantec Ghost 11.0.2.1573, were switching platforms because of budget reasons. I heard there was way that Symantec can audit the computers that have been imaged by Ghost is that true? Also all of images are.GHS files if we convert them to another platform will the Ghost "audit" file still be on those images or will we have to sysprep a new image from scratch?