First of all i really like your plugin and it becomes really usefull at my work.
About the problem, after you add a photo to cart (the box part), the page of the gallery that appears is the first page of the gallery even if you were at the second or last page of the gallery.
This makes some of the users confused and some of them even quit their purchase (i notice that after a review of a client) because they want to continue looking the pictures and adding others.
I have been searching for a way to change this (i used some versions of this plugin to see if the problem was solved) but my short knowlegde doesn´t make me go further.
Any way thank you for your time and this wonderful plugin.