ActionScript 3.0 :: Loading External Swfs Full Browser Flash?

Take a look at this swf file at [URL].. Click on the gray bar, then once the circles animation begins, try resizing the browser window. There are two external swfs loaded in one main flash file - the rolling ball, which is a default external swf, and the circles swf, which loads after the gray button is clicked.I would like the circles swf to load into the blank movie clip I have set up.  I  would like the external swf contained within the blank movie clip to  be full browser flash and scaleable with any change in browser size. To do this, I set up some actionscript to make the blankmc full browser and scaleable (i've done this on a regular movie clip slide show from within a flash file, rather than being an externally loaded swf, and it worked.)   with the hope that the blank movie clip and its contents, which would be the external circles swf file, would resize and rescale appropariately if the browser window were changed.
 
Currently, when the gray bar is clicked, the circles swf comes in not as full browser.  Once the window is resized, the animation relocates itself to the lower right corner,  with the top corner of the external swf situating itself on the center  of the blank mc. I know this is a registration issue, but before resize the animation is where i want it.  Also, while the scale of the circles animation does change with the browser window size, it does so i a wacky way.