I am an expert in creating dynamic Flash content. I create sites that change depending on the data. This means you never have to change the Flash file, just your information and the Flash file takes care of the rest.
Examples of dynamic sites include data from HTML/javascript, XML, text files, as well as database results supplied via .Net, asp, php, coldfusion and perl.
(For the Lightness site, SEO friendly HTML is presented via Javascript using Flash's superior typography),