Hi Jason,
you can have a look here.
Please don’t mind the mess on the page, it’s under construction. 🙂
No clue, unfortunately, but I have the very same problem.
I’ve used the code from the developer’s website’s external Picasa example just as it is displayed on the website.
I’ve also installed a mootools framework plugin, renamed the prototype.js (otherwise it gives an Error message), deactivated all other plugins, tried different browsers, but it doesn’t display anything at all in the post where the slideshow is supposed to be.