Reference/control clip loaded in other class?

I’m using bulkLoader to load my mp3 and flv files (thanks to dawsonk for hooking me up with the answer there), and now I need to be able to play/pause and jump ahead and back in the movie that I loaded, but I can’t figure out how to reference it??

Also, when I go to load another movie/audio from a button click, do I need to do anything with the old instance, or will flash take care of that??

Here’s the class:

package{
    import br.com.stimuli.loading.BulkLoader;
    import br.com.stimuli.loading.BulkProgressEvent;
    import flash.events.*;
    import flash.display.*;
    import flash.media.*;
    import flash.net.*;

    public class SimpleExampleMain extends MovieClip{
        public var loader : BulkLoader;
        public var v : Video;
        public var counter : int = 0;
        public var mp3:String;
        public var flv:String;

        public function SimpleExampleMain(mp3,flv) {
            loader = new BulkLoader("main-site");
            loader.logLevel = BulkLoader.LOG_VERBOSE;
            loader.add(flv, {maxTries:6, id:"the-video", pausedAtStart:true}); 
            loader.add(mp3, {"id":"soundtrack", maxTries:1, priority:100});
            loader.addEventListener(BulkLoader.COMPLETE, onAllItemsLoaded);
            loader.addEventListener(BulkLoader.PROGRESS, onAllItemsProgress);
            loader.start();
        }
        
        public function onAllItemsLoaded(evt : Event) : void{
            var video : Video = new Video();
            var theNetStream : NetStream = loader.getNetStream("the-video");
            trace("theNetStream "+theNetStream);
            addChild(video);
            video.attachNetStream(theNetStream);
            theNetStream.resume();
            video.y = 300;
            
            var soundtrack : Sound = loader.getSound("soundtrack");
            soundtrack.play();
        }
        
        public function onAllItemsProgress(evt : BulkProgressEvent) : void{
            trace(evt.loadingStatus());
        }
    }
}

here’s how I’m loading it:

var mp3:String="audioFile.mp3";
var flv:String="videoFile.flv";
var se:SimpleExampleMain=new SimpleExampleMain(mp3,flv);
addChild(se);

and here are my button functions:

public function audioStop(e:Event):void {
                       //this is how I was doing it when I used flvComponent
            //video_mc.stop();

                       //this is what I tried, but it gives errors because theNetStream is declared in a different class/function...I think...
            //theNetStream.stop();

                       //this is what I was using for the sound previously
            //pausePoint=channel.position;
            //channel.stop();

            isPlaying=false;
        }

public function nextScreen(e:Event):void {
                       mp3="newfile.mp3";
                       flv="newfile.flv";
                       //just needs to call bulkLoader again but I'm not sure if I need to delete the old items, can I just do:
                 var se:SimpleExampleMain=new SimpleExampleMain(mp3,flv);
addChild(se);    
        }

THANKS!!!