I'm a little confused about how you've already gone about doing the rest of the project since I don't fully understand your original description, but if you want to change the camera (zooming, panning, etc.) you should look into using a virtual camera.
Google 'flash v cam' and you'll be able to find a .fla project with it and you can just move it to your project.
It will allow you to animate the camera just as you do a symbol, which might make the computer screen effect easier.
I only know AS2, but if you need some more help you can send me a pm.
I'll help with what I can but won't be able to devote too much time to it.
This post was edited by Dragonkoh on May 29 2013 12:50pm