hitTest and draggable MCs

**These codes are in the draggable MC: fish1_drag

Hi, this is my code:

onClipEvent (enterFrame) {
    this.onPress = function() {
        startDrag(this);
    };

    _root.UI1_mc.UI1_mc2.inv_mc.ISpace1.onEnterFrame = function() {
        if (this.hitTest(fish1_drag)) {
            stopDrag();
        } else {
        }
    };
}

I keep jumbling it up so that one thing works but the other doesnt. But basicly I need it so that when I drag fish1_drag (instance name) over ISpace1 (which is within many MCs : _root.UI1_mc.UI1_mc2.inv_mc.ISpace1 but opens up so you can drag it over it) for it the drop on the ISpace1.

I have another MC in the library and il get that the attach to the ISpace1 but what im finding difficult is just being able to drag the fish1_drag over the ISpace1 and releasing.

Here is some other reandom code that I have in a comment on my AC panel:

/*

            this.onRelease = function() {
                stopDrag();
                _root.UI1_mc.UI1_mc2.inv_mc.ISpace1.attachMovie("fish1_mc","attached1",this.getNextHighestDepth());
                _root.invCount += 1;
                updateAfterEvent();  // I probly dont need this updateAfterEvent. but its there anyway.
            };

*/

Thanks please help, hope you understand my jibberish speech.