Connecting files with actionscript 3.0

i need to connect fla files to each other. how do i do it. i have a home.fla, contact.fla, and other fla files. how do i connect the so that it’s all one site.

at work we’re using a framework that does it. but i’m not familiar with frameworks and would rather not use this one because it is giving me trouble when i tell it to use tweens i made with TweenMax.

can anyone help me?!?!

thanks