[AS2.0] loadMovie depth problem

hi guys … i new in flash, i hope you can help me
i make sound looping over site using loadMovie, i think the problem is about depth.

the AS is on mainStage, and on mainStage i create holder (yes, later i should using createEmptyMovieClip) hold_sound … and the mainStage isn’t the _root.


this.soundstatus = "new";
this.mySound = new Sound(this.soundbutton);
this.mySound.attachSound("MySoundTrack");
this.mySound.setVolume(0);
this.mySound.start(0,1000);
this.soundbutton.minvolume = 0; 
this.soundbutton.maxvolume = 100;

i try to trace on _root and all i can get is this


_level0.mainStage.hold_sound

So i try using


this._parent.hold_sound.code

… still doesn’t works

Can you help me?
thx guys.
cheers