The archive is arranged by publication. Each publication has its own sections, listed underneath its name when you open it.
On a small screen, tap the menu button in the top left to see everything at once. Tapping the small arrow beside a publication opens its sections without taking you to another page.
Many pages have no photograph and many have no date. That is not missing information on your screen; those details were never recorded, and we would rather leave them out than invent them.