I figured it'd be cool to have a slide puzzle engine that pictures could be plugged into and ready to go, so I worked this up this morning. Press LEFT and RIGHT to go through the pictures/graphics (randomly chosen from my computer), UP and DOWN to adjust the difficulty (aka number of pieces), and SPACE to toggle the scrambler.

http://www.gotcool.com/slidePuzzle.swf

[PS] Sorry, no preloader (1.3 mb)