Saving highscore problem

Im trying to save the highscore for my game but i can't figure it out! I used mybringbacks tutorial: http://www.youtube.com/watch?v=1ZGDBuJjFbY On how to save highscore. Its a little complicated for me, and when i write it into my script, it says: Operator '>' cannot be used with a left hand side of type 'Object' and a right hand side of type 'int'.

What do i do wrong, and how do i fix it and make my highscore?

 #pragma strict
 
 var score;
 var highscore = 0;
 
 
 function Update () 
 {
 
 score = GameObject.Find("CounterGUI").GetComponent(Counter).Timer;
 
 
 
 
 if (GameObject.Find("Spaceship").GetComponent(Clickmove2).die == true)
 {
  GetComponent(GUIText).enabled = true;
 
 }
 
 
 
 if(score > PlayerPrefs.GetInt("highscore"))
 {
         PlayerPrefs.SetInt("highscore" , score);
 }
 
 
 guiText.text = "Best:" + PlayerPrefs.GetInt("highscore");
 
 
 
 }