Detecting Touch on GUITexture - Index Out of Bounds Error.

Unity Engine
1

This is my first time doing this so bare with me here. I am using Unity GUITexture and I want to detect touch only on the GUI Texture. I checked with the Penelope tutorial to try this out. I get an " Index Out of bounds" error and to the best of my knowledge this is not too far from the Penelope Touch control for the jump button. I also tried declaring it at the top too.
They have: var touch : Touch = Input.GetTouch(0);

var gunShell : Rigidbody;
private var bulletClone : Rigidbody ;
var machineGunFireButton: GUITexture;
var MachineGunFireSound : AudioClip;
private var touch : Touch;
var speed = 75;
var reloadTimer = 0.3;
private var reloadTime = 0.0;  
	
private var nextFire : float = 0.0;

function Update () 
{
	TurretFire ();
}

function TurretFire ()
{   
   touch =Input.GetTouch(0); //THIS LINE - UNITYEXCEPTION INDEX OUT OF BOUNDS
	//if the texture is pressed at the texture location
    if (machineGunFireButton.HitTest(touch.position)  Time.time > nextFire) 
	{   
		nextFire = Time.time + reloadTimer;
		bulletClone = Instantiate(gunShell, transform.position, transform.rotation);
		bulletClone.velocity = transform.forward * speed ;//* -1;
		if (nextFire)
		{
		AudioSource.PlayClipAtPoint(MachineGunFireSound, transform.position);
		yield WaitForSeconds(audio.clip.length);
		}
	}
}
2

Fixed:

function Update () 
{   
	
	var count = Input.touchCount;
	
 for(var i : int = 0;i < count; i++)	
	{	
		touch =Input.GetTouch(i);
	
	  if (machineGunFireButton.HitTest(touch.position)) 
    	  {		
			TurretFire ();
      	}
      
	}
}
3

Cool, this is old