I had updated the site to the latest version of the NGG plug-in, after the update, and activation - the JS functionality isn't there on click.
On click, thumbnails open in another page, and not in the "thickbox" or "slideshow" functionality.
http://www.schadenfreude.net (on the homepage, I use the Gallery Widget)
http://www.schadenfreude.net/2008/11/05/who-loses.php (here is an example of the gallery in use)
Both links show how it is broken. Any thoughts?