Create empty MC on RollOver and attach to mouse?

I’m trying to have a button rollover create an empty MC (board_loader) that will load a swf in itself (board1.swf) and follow the mouse around for the duration of the rollover. I know its not much, but here’s what I have so far:

ActionScript Code:
[FONT=Courier New][LEFT]board1.[COLOR=#0000FF]onRollOver[/COLOR] = [COLOR=#000000]**function**[/COLOR][COLOR=#000000]([/COLOR][COLOR=#000000])[/COLOR] [COLOR=#000000]{[/COLOR]
boardloader.[COLOR=#0000FF]loadMovie[/COLOR][COLOR=#000000]([/COLOR][COLOR=#FF0000]"board1.swf"[/COLOR][COLOR=#000000])[/COLOR];

[COLOR=#000000]}[/COLOR];
board1.[COLOR=#0000FF]onRollOut[/COLOR] = [COLOR=#000000]function[/COLOR]COLOR=#000000[/COLOR] [COLOR=#000000]{[/COLOR]
[COLOR=#808080]//unload movie (i know there is a better way!! What is it??)[/COLOR]
boardloader.[COLOR=#0000FF]loadMovie[/COLOR]COLOR=#000000[/COLOR];

[COLOR=#000000]}[/COLOR];
[/LEFT]
[/FONT]

Any ideas?