In class the question was asked, "How can I use XML to make my Flash site more dynamic?". This tutorial showed what the structure of xml is, how you can get information about your data from it, and then how to make your Flash file expand to hold the content of the XML.
The example we used was a list of upcoming shows. The XML contains the information about each show and a movie clip is duplicated on the stage for ever event. The gold of this is to allow someone with relativly little Flash knowledge to update thier site. Keep in mind that most of your 'real-life' clients will not want to learn anything about Adobe Flash software, but they might not mind learning how to update a XML document to populate the site with new information.