Loading external files in Mx showing a preloader


I have hacked one of your files on the tutorials : 6 kirupa.com - Preloader and Transition for Dynamic Files
Learn how to create preloaders and transitions for externally loaded files.

Anyway I ahve modified it to load in jpegs but I need to put a preloader in somehow so I can show how long till the jpeg loads. SOunds easy!!! But I am well stuck

I have kept the same basic stucture as the original file but am usure where to stick the preloader… On the loader movie or the transition one. And then how to configure it. I tried turing my jpegs into swfs and outting a preloader but that did not work either…?