Please help? BCE0019: 'Matrix4x4' is not a member of 'UnityEngine.GUI'. ?

OK so Working on tutorial in Unity 3D and I know the tutorial is in Unity 2 however it was good up to this point were the tutorial want me to created this code:

 @script ExecuteInEditMode()
 var background : GUIStyle;
 var gameOverText : GUIStyle;
 var gameOverShadow : GUIStyle;
 var gameOverScale = 1.5;
 var gameOverShadowScale = 1.5;
 
 function OnGUI(){
     GUI.Label(Rect((Screen.width - (Screen.height * 2)) * 0.75, 0, Screen.height * 2, Screen.height), "", background);
     GUI.Matrix4x4.TRS(Vector3(0, 0, 0), Quaternion.identity, Vector3.one * gameOverShadowScale);
     GUI.Label(Rect((Screen.width / (2 * gameOverShadowScale)) - 150, (Screen.height / (2 * gameOverShadowScale)) - 40, 300, 100), "Game Over", gameOverShadowScale);
     GUI.matrix = Matrix4x4.TRS(Vector3(0, 0 , 0), Quaternion.identity, Vector3.one * gameOverScale);
     GUI.Label (Rect((Screen.width/(2 * gameOverScale)) - 150, (Screen.height / (2 * gameOverScale)) -40, 300, 100), "Game Over", gameOverText);
 }

so I click play to see and I got this errors: Assets/GUI/GameOverGUI.js(10,13): BCE0019: 'Matrix4x4' is not a member of 'UnityEngine.GUI'. and Assets/GUI/GameOverGUI.js(11,18): BCE0023: No appropriate version of 'UnityEngine.GUI.Label' for the argument list '(UnityEngine.Rect, String, float)' was found.

can any one help???