how add script by script to gameObject

Hi, I write a game based on Unity 3.x... and i have a problem with mini game in coconut shy. I win a power cell but i can't take it. I think that this script doesn't duplicate object with script attached to him.

     static var targets : int = 0;
     static var haveWon : boolean = false;
     var winSound : AudioClip;
     var cellPrefab : GameObject;
     
     function Start () {
     
     }
     
     function Update () {
         if(targets==3 &&haveWon == false){
                targets=0;
                audio.PlayOneShot(winSound);
                winCell : GameObject = transform.Find("powerCell").gameObject;
                winCell.transform.Translate(-1,0,0);
                Instantiate(cellPrefab, winCell.transform.position, transform.rotation);
                Destroy(winCell);
                haveWon = true;
            }
     }

How in diffrent way I can add script to power cell witch I win?