Someone sent me a link to a shared folder to add some pictures but I can't figure out how to do it. I've never used Dropbox before and no matter how much I google I can only find information on how to create my own shared folder - which is not what I'm wanting to do. I have signed up, downloaded the application and uploaded my selected photos to my Dropbox page. The shared folder link is nowhere on my home page and when I open the shared folder link via email, I just get a blank page with 'no photos' displayed and no option to upload them. I see that I am signed in, though, but other than that the only other links on the page is the Dropbox icon. What do I need to do to add my pictures to this folder?