Michael does not make the licensing policies for the company he is merely a developer like I am. We follow the rules given to us by the owner and the licensing policy here is very clear. Neither one of us would be able to give you a different answer.
I can assure you I totally understand what your trying to do here but my answer is based off the licensing policies. You would not be able to install both applications being web accessible and have them both running at the same time. You would have to remove vbGallery from the server. It would not matter if you disabled uploading on the vbGallery it would still be running and web accessible which would be a violation of the licensing.