Reset button - Help!

Hi, Im trying to get this reset button to work. I used to use this code in Flash MX but it doesn´t work in AS2…

on (press) {
 _root.playb.onRelease = function() {
  _root.gotoAndStop(1);
 }
}

I also tried:

loadMovieNum("YourFile.SWF", 0);

but the code dosn´t work after I export the .swf to my web server and view it on the internet…(it just disappears when the button is pressed)
and the simple

gotoandplay("start")

dosn´t work because I need to reload the code…
Can anyone help me to solve this… ?