The problems of your system are so many that it's hard to know where to start. For example, I click on multiple images to assign them to a folder but when I go to drag those images up, if the folders themselves aren't actually visible on the screen, you haven't allowed a scroll up feature to drag and drop. If I click on the pics in a list, and I have a lot of images, it keeps reloading from the beginning (and not where you last stopped your search) so again, if I'm trying to reorder pics for folders it takes forever! So many things should be fixed. I could go on, but the point is that you need to do a lot more testing with people who actually use the site and less with your own designers.