This tutorial by Flash Farmer covers how to create a dynamic Flash XML navigation menu using Actionscript 2.0 and XML. Each button has a roll over and roll out animation. Control the clickthroughs, button titles and the total number of buttons with the external XML file. Once the Flash file is created you can update the menu just by editing the XML file.

This file consists of a nice structure and code is well commented.  Also, files to be downloaded comes along with full offline documentation.

Example of final product: