Well the thread you are referring to on vbAdvanced which has been up on there site since november simply states that they no longer sell it and they direct you to our site.
On our before you buy forum we have stickied at the top how to purchase vbgallery. I am assuming you simply went and ordered Photopost which is fine. There are hacks for both products to do what you want.
http://www.photopost.com/forum/showthread.php?t=121701