There is a new tutorial on Server Side ActionScript at Macromedia.com. Here is the description:
Building a Database Query Application with Server-Side ActionScript
In this module, you can learn how to build an application that searches a database using parameters provided by the user and displays the results in a rich Macromedia Flash user interface. It demonstrates two key features of ColdFusion MX: the built-in Macromedia Flash Remoting service and new support for Server-side ActionScript.
This was written by Christian Cantrell who will be speaking about Flash Remoting at FlashForward NYC.