Well, I thought I had it. The external file loads fine, but then disappears when the new page loads. The empty movie clip loads in the first frame of the movie. The code I am calling from the HTML is "param name="movie" value="Menu.swf?whatToLoad=Acc_Main.swf">".

The code for the blank movie clip is: "onClipEvent (Load) {
loadMovie(whatToLoad, "level1");

}

The code on the button is: "createEmptyMovieClip("image_mc", "level3");
image_mc.loadMovie(whatToLoad);"

Is it that I am not declaring and defining the var "whatToLoad" within the Flash movie?

As always, I appreciate being shown the error of my ways.