What I do to view photos is click on the most recent one on this post and use the arrow keys located on the photo's sides to toggle backward or forward again. It will toggle through everyone's photos. I never went backwards more than a few photos but I'm sure it would work to go in reverse until you get blurry-eyed looking at so many great photos!!! You have to click on the photo of the original post because if you click on a "Quoted" photo on someone else's post it won't come up. Hope this helps.