The ratings in vbgallery are the same as pro. As far as modifications I would not know if there are any or not. You could search THE MOD CORNER and see. Our company does not specifically interact outside the support forums. Those forums are for users to converse with each other.
Err, do you already had a look at rating in PhotoPostPro? There is ALREADY rating from 1-10, and this option is NOT included in vbGallery. Therefore rating systems in these galleries are also NOT identical.