.onRelease button not playing video

I created an video Flash ad with ActionScript 3.0 and was then told by the publisher I could only use ActionScript 2.0. #smh

I've gone back and tried to figure out the ActionScript 2.0 alternatives and syntax and the ad appears now without any errors but I seem to be missing something as the play_btn will not start the video.

Here's my script:

var myVideo:Video = new Video(300, 170); // note size for video

  addChild(myVideo);

// Play button

play_btn.onRelease = function() {

  var nc:NetConnection = new NetConnection();

  nc.connect(null);

  var ns:NetStream = new NetStream(nc);

  ns.client = new Object();

  myVideo.attachVideo(ns);

  ns.play("http://www.dcccd.edu/images/DCCCDlogos/flash/welding.flv");

  addChild(play_btn);

  addChild(stop_btn);

};

// Stop button

stop_btn.onRelease = function() {

  ns.pause();

};

// Lean More button

learn_btn.onRelease = function() {

  getURL(_root.clickTAG, "_blank");

};

// stop();

I'm not sure if I need the stop command or not as right now it's not making a difference one way or the other. Any help on what I'm missing would be greatly appreciated.