Manipulating class-generated movieclips

To begin, I have been able to draw rudimentary shapes on the main timeline by importing this class on the main timeline (first frame) and plugging in the requisite parameters

class BoxyRounded extends MovieClip {
    var iN:String;
    var d:Number;
    var lst:Number;
    var lsc:String;
    var lsa:Number;
    var x0:Number;
    var y0:Number;
    var fcc:String;
    var fca:Number;
    var w:Number;
    var h:Number;
    var cs:Number;
    public function BoxyRounded(iN, d, lst, lsc, lsa, x0, y0, fcc, fca, w, h, cs) {
        _root.createEmptyMovieClip(iN, d);
        with (iN) {
            lineStyle(lst, lsc, lsa);
            moveTo(x0+cs, y0);
            beginFill(fcc, fca);
            lineTo(x0+w-cs, y0);
            curveTo(x0+w, y0, x0+w, y0+cs);
            lineTo(x0+w, y0+h-cs);
            curveTo(x0+w, y0+h, x0+w-cs, y0+h);
            lineTo(x0+cs, y0+h);
            curveTo(x0, y0+h, x0, y0+h-cs);
            lineTo(x0, y0+cs);
            curveTo(x0, y0, x0+cs, y0);
            endFill();
        }
    }
}

Once the shapes are drawn I cannot seem to manipulate them on the main timeline to make them move about and alpha up and down. Is there some way to do this?

[BTW, here’s the first frame code]


stop();
import BoxyRounded;
//function BoxyRounded(iN, d, lst, lsc, lsa, x0, y0, fcc, fca, w, h, cs)
var box3:BoxyRounded = new BoxyRounded("box3", _root.getNextHighestDepth()+1, 0, "0x00ff00", 0, 0, 0, "0x800000", 100, 50, 250, 100);

When I have created movieclips without actionscript, then attached AS 2 classes to them I can manipulate them. If there is not a way that I can manipulate AS-generated clips on the main timeline, is this doable from within the class?

Thanks for your time.