The CSC website is currently being revamped, what you are seeing is the new design and structure of the site. If you would like to help out you should probably e-mail the webmaster, and they'll let you know how to get started.
This website is completely generated from XML sources using an XSLT (XML Stylesheet Language Transformation), which is basically a simple XML programming language specifically built for this kind of thing. This allows complete separation of form and content as well as automating a number of tasks (such as generating the events pages).
I have provided some helpful links regarding XSLT and XML below.