gotcha covered.
I have a script that you just throw in a folder with Jpg's or any other type image, you can specify what types to include or exclude.
You can specify how many images across, how many down on a page.
Just email me if you'd like to take a look at it.
Sam Fullman
Compass Point Media.
sam@compasspointmedia.com
P.S. This is a great script and I wish someone who runs this site would let me write an article but nobody every answers my requests...