Implementation Strategy

I would like to use this photo album on multiple church websites. Each church having its own unique set of photo galleries.

Is there an implementation strategy that would allow me to do this utilizing one central database? or will I have to create and install a new instance of this product on each website?

I thought about using iforms on each site...but I did not know if the theme/colors could be changed implementing it in this manner for each web site.

BTW - I have not used this product as of yet...but what from I have seen, it appears to be excellent and exactly the solution that I am looking for.

Thank you...