Deleting old backup files

I did a Ghost My Documents data backup (not a My Computer backup) months ago and now I want to delete the backup files off my external hard drive.

 

However, I had to completely rebuild Windows XP from the ground up so any Ghost index files (if any) for the backup were lost.

 

Can anyone tell me what the folder names are that keep the backup files?

 

I do have a folder "\File Backup Data" on the external drive. This folder has sub folders with names "fbfFiles_???" and these folders have files with a ".fbf" file extension. Data in these files in not conprehensable.

 

Any help is greatly appreciated.

 

Peter