@mvandemar You are a legend mate! I have been battling for hours to figure out how to get NGG working together with Pretty Photo Media, and your solution inspired me to try one last thing... and it worked!
I didn’t create all the extra files, functions and templates etc. All I did was add the following code (thanks to you) as a custom effect, just like you suggest here:
Then I went to Gallery -> Options -> Effects, changed the dropdown to Custom, and added this code:
rel="prettyPhoto[%GALLERY_NAME%]"
The result is exactly this:
http://www.inmotionkitesurfing.com/photos
So to anyone looking for a quick, easy solution, just install PrettyPhoto Media as @mvandemar suggests, then add the above code to NGG Gallery as he suggests as well. And that should be it...
Thanks @mvandemar for taking the time to share your solution with us, and in the process, sorting out my problem for me.
Brendon