The above Gallery works just like your DVD Player (or Video). The photos are ogranised in to albums. Simply click on the album you'd like to view.
You can send pictures to your friends via the email link (like an envelope) on the player tool bar and also view enlarged versions of the photos by clicking on the L (or you can just double click on the photo you want to enlarge). You can also zoom in and out, and download the photo to your computer by clicking on the down arrow.