The home page can be accessed from every page.
Most pictures are just thumb nail pictures.
If you click on a thumb nail picture a larger image will be loaded. To go back to the thumb nail picture simply click on the large image. Some menu's are made so that you can go from one large image to the other. If the UP button takes you to the thumb nail pictures then you viewed the first picture. Choose the button with the item name or number to see the next large pictures.