Movie 1 -> AS to control Movie 2

Hi
I have a demonstration to make of our software. It is going to be fairly long so to keep file sizes down I am going to build it in several swf files. It will have voice over as well.

My idea is to load up index.swf, which will be the framework.
Frame one of “index.swf” will call “1.swf” into level 50.

Frame 1 of “1.swf” will call “2.swf” into level 49
The last frame of “1.swf” will unload level 50 to reveal “2.swf” on level 49
“2.swf” will be stopped on frame 1

My question is what AS can I use at the end of “1.swf” to tell “2.swf” to gotoand play frame2?

Or better still is there a better way of doing this?
The demo needs to run smoothly from “1.swf” to “2.swf”