A CMS is a Content Management System. In short it's a (usually) fairly easy way to organize everything on a site right out of the box.
I don't want to beat the dead horse so to speak, but to say it's the worst website in existance is a tad harsh - I've seen yellow text on white backgrounds before, and THAT'S a bad website. This isn't much higher up though for a few reasons:
1) Frames. Frames are hard to code for because frames rely on the browser itself - it's difficult to code for a specific size, such as 1024x768, when the frames will shrink if the browser is small, or stretch if it's big - tables or div's can do better than that.
2) The green gradient in the left - I'm viewing in 1280x1024 and it's tiling verticaly, which doesn't help matters - the main problem is that it's green - it stands out more than the page itself does, and it's also way too easy to tell exactly where that frame ends. There's no consistancy between the site - the reason it's green is beyond me, but it should blend in with the rest of the site.
3) Some of the pages themselves are so bright I can hardly stand to look at them - Investigations for instance. There is NEVER a valid reason for having a yellow-cyan box-style gradient as a background on a page.
A CMS should be able to make everything much more uniform; theres a good number of us on x10 who use them, and normally I'd link my site as an example of a CMS in action, however you might find it easier to use this instead:
http://forums.x10hosting.com/script...se-open-source-content-management-system.html
The ones that come highly recommended are Joomla (the one I'm using), Drupal, and e107. I might add Joomla I KNOW is available in Fantastico - I don't like it's default template much, but there's plenty available on the web, both free and paid to choose from. I'd hunt around a bit and see what you can find for CMS demo's, or hunt around in the scripts/3rd party forum and see what you can find. There's been a bunch of posts with users looking for CMS's, and usually there are also links to the CMS in action
