Using SwishMax for Captivate variables

Hi guys

I banging my head against a wall trying to get some code to allow me to drag and drop using a swishmax swf file in captivate.
I just cannot seem to get the swf file to talk to the Captivate variables.
My actionscript code looks like this in swishmax

onSelfEvent (press) {
startDragUnlocked();
}
onSelfEvent (release) {
stopDrag();
if (_droptarget==_parent.box._target) {
this._parent._parent.rdcmndNextSlide = 1;
}
}

Is this the right syntax to reference the captivate variable "this._parent._parent.rdcmndNextSlide = 1;" ???

Any help gratefully recieved