Embedded Video Problem

I am building a CD presentation that uses .fla video clips imbedded into a video player interface that allows scrubbing of the video. When they are played as an independent .swf everything is perfect.

I have a Flash interface with buttons that bring the video player .swf(the .flv is embedded in it) files mentioned above into it. I am using an empty mc as a place holder and on release of the button it replaces the empty mc with a video player .swf from above.

Everything looks fine and the play button works just long enough to start the movie but then the control buttons on the player i.e. play, stop, volume, and scrub do not work. The roll over state changes color but the on release doesn't function.

I need to use embedded .fla video because I have the video playing while 2 other animations (in the same time line) are playing on different parts of the stage and I need the viewer to be able to scrub the presentation.

Any thoughts on why the buttons would be broken when it is loaded into the Flash interface? It's basically an .swf nested within another .swf. THANKS for any help!