Flash movie doesn't run from 1st frame!

http://www.kirupa.com/developer/mx/preloader_transition.htm
I used this tutorial to make my flash movie. The main movie is 1.91MB in size and I’ve used the same technique and have uploaded the final product at:
http://www.systematixtechnocrates.com/AFTRA/intro.htm
but, the problem is that when once the preloader reaches 100% the main movie runs from frame no.250 or around and not from the 1st frame. Is it because the external movie is quite big in size?
When once the movie has been loaded fully, and we replay then the movie runs perfectly well. And, I don’t face this problem when I publish and test it locally.