I built the site using the Mambo open-source content management system (CMS). I'm a big fan of open-source software, as it provides terrific opportunities for people like me to collaborate on something useful, something that contributes to the free exchange of ideas and information. It not only encourages but tends to require that people around the world cross language and economic barriers, because complicated software is too hard for one guy in Virginia Beach to write.
Open-source software is free. I get to use it, rewrite the parts I don't like, do whatever I want with it and not pay anyone a dime. But I also get to contribute to it! If I add a little calendar feature, and make it available to everyone else in the world, I've made the software better and balanced my computer karma.
I also become a better programmer, and can get better jobs, and write better software, and so open-source software is good for the economy too!
Mambo is one of many open-source CMS programs out there, and it was one of the first I tried. (The development team for Mambo subsequently split into two groups, and now a similar CMS called Joomla is very popular and is a very close but ever-diverging variation of Mambo.)
Since then, I've learned Drupal, my favorite, and dug into WordPress, and now I feel like a pretty decent open-source coder and designer, so feel free to contact me if you wanna hire me for something.