Display Flickr Images With Style: Flickrshow
The script is very easy to install & can be set to show images within Flickr groups, photosets or tag based images.
Flickrshow has a cache system that enables the presentation of images faster. And, presentation can be managed with a play/pause button.
Also, you can easily modify the theme completely via CSS.
P.S. The application requires Prototype & a small part of Scriptaculous library.
Compatibility: All Major Browsers