Smooth aiming script don't work

Hi, Firts I ALREADY searched on the other topic like this and nothing work for me so, I don't want this kind of answer : http://lmgtfy.com/?q=Unity+3d+smooth+aiming+script ok ? so my probleme is : my script don't give error and here's a bug : My weapon don't move to the camera : My camera is zooming and my crosshair is disabled but my weapon don't move : Yes I have change the X Y and Z pos of normal and scope position for test, here's my script :

 #pragma strict
 
 var Weapon : Transform;
 
 var player : GameObject;
 
 var zoomedFOV : float = 40;
 var originalFOV : float = 60;
 
 var ScopingXGunPos : float;
 var ScopingYGunPos : float;
 var ScopingZGunPos : float;
 
 var NormalXGunPos : float;
 var NormalYGunPos : float;
 var NormalZGunPos : float;
 
 var smoothTime : float = 0.3;
 
 private var crossHairS : Crosshair;
 
 private var targetX : float;
 private var targetY : float;
 private var targetZ : float;
 
 private var velocityY : float = 0; //DON'T TOUCH THIS TO !
 private var velocityZ : float = 0; //DON'T TOUCH THIS TO !
 private var velocityX : float = 0; //DON'T TOUCH THIS TO !
 
 function Start () {
 //transform.localPosition = NormalPos;
 crossHairS = player.GetComponent(Crosshair);
 }
 
 
 function Update () {
 var newX : float = Mathf.SmoothDamp(Weapon.transform.localPosition.x, targetX, velocityX, smoothTime);
 var newY : float = Mathf.SmoothDamp(Weapon.transform.localPosition.y, targetY, velocityY, smoothTime);
 var newZ : float = Mathf.SmoothDamp(Weapon.transform.localPosition.z, targetZ, velocityZ, smoothTime);
 
 if(Input.GetButton("Fire2")){
 Camera.main.fieldOfView = zoomedFOV;
 crossHairS.ShowCrosshair = false;
 targetX = ScopingXGunPos;
 targetY = ScopingYGunPos;
 targetZ = ScopingZGunPos;
 Weapon.transform.position = Vector3 (newX, newY, newZ);
 }
 
 if(!Input.GetButton("Fire2")){
 Camera.main.fieldOfView = originalFOV;
 crossHairS.ShowCrosshair = true;
 targetX = NormalXGunPos;
 targetY = NormalYGunPos;
 targetZ = NormalZGunPos;
 Weapon.transform.position = Vector3 (newX, newY, newZ);
 }
 
 }

Thanx.