Creating a full Flash site tutorial questions

[FONT=Arial][SIZE=3]I just went through Kirupa’s tutorial on “Creating a Full Flash Site” that describes how to load external SWF movies into an index animation created by an empty MovieClip on the stage. Can this method be used to load fully-interactive AS3 SWF files on to the stage to allow complete user interactivity?
For example, in Kirupa’s tutorial, when the “Music” nav button is clicked, can a fully-interactive AS3 music player SWF file be loaded into the index animation so the user can choose and play songs loaded from an external XML file? And then could there be another nav button for “Video” which would load a video player AS3 SWF file so the user could play music videos loaded from another external XML file?
If so, any details on how would be greatly appreciated. If not, how could this be done?
Thanks.
[/SIZE][/FONT]