Theres not a lot to it.

If all you need is a very simple image browser and slideshow player, then this will do the job. It basically allows you to browse through a folder of images one image at a time. If youre looking for slightly more sophisticated features such as a thumbnail view or thumbnail view with adjustable sizes (essential for viewing more than one image at a time) look elsewhere.

Shutterfinger about Xee³: Image Viewer and Browser