Very nooby moving bullet question

1

ok all I want to do is make a character that shoots bullets.
I can attach the bullet but it stays still.
someone please help as i have tried everything
here is the code I used

 
 
shoot = true;
bulletcount = 0;
_root.onEnterFrame = function() {
 if (Key.isDown(Key.SPACE) && shoot == true) {
  currentbullet = attachMovie("bullet", "bullet"+bulletcount, bulletcount);
  currentbullet._x = _root.char._x;
  currentbullet._y = _root.char._y;
  bulletcount++;
  shoot = false;
 }
 if (Key.isDown(Key.SPACE)) {
  spaceup = false;
 } else {
  spaceup = true;
 }
 if (spaceup) {
  shoot = true;
 }
};

thanks in advance