If you would like to learn more about building Flash communication applications, here are some resources:
Macromedia Flash Communication Server MX , authored by Kevin Towes and published by Macromedia Press
Fast Track to Macromedia Flash Communication Server MX, a formal training curriculum offered exclusively by New Toronto Group (www.NewYYZ.com)
Macromedia Developer Center (DEVNET) at www.macromedia.com/devnet/mx/flashcom/