Loading a container inside a container

I just did the “Transitions Between Swf’s Tutorial”, i basically understood how it works and got everything to work right, but now my next question is how can i load another container using the same technique as the tutorial shows into the exsiting container. Basically load a container inside a container.

I tried doing it by using the same idea as the tutorial but the swf that i am trying to load in the new container wont load.

I would really appreciate some help.

Thank you!

i dont really see any big advantages of making a container within another container, why dont you just create another container outside?