This may be the strangest question ever. I installed NextGen and installed images into several galleries. I put this code in the different pages [gallery=# orderby="rand"]. I don't think it is correct but it is working. Further images from my computer using the link located above the text editing box. I can find pictures in the "gallery" at the the same location. I find nothing in the NextGen Gallery.
The good thing is that if you click on the pictures under "store" they go to a larger version which contain buy buttons which is exactly what I trying to accomplish.
However if I go to the NextGen manage gallery button it does not let me set up pagination.