New at Unity, Issues following Sams Teach Yourself

I recently bought a Sams Teach Yourself Unity Game Development and have come accross many issues. 1 is that the book is for Unity 4 but I downloaded Unity 5.3.2, the other is that the files they have associated to the book are outdated in a sense that heightmaps they give us are terrible and ive had to make my own. I have made a game and the scripting they are giving us is error filled. I have minor experince in coding, but dont understand how it goes with the book and I cant figure it out because so much of whats in the book is outdated. I will show you the codes that are given in the book.

Game Control Script: using UnityEngine; using System.Collections;

public class GameControlScript : MonoBehaviour {

 //The amount of ellapsed time
 private float time = 0;
 
 //Flags that control the state of the game
 private bool isRunning = false;
 private bool isFinished = false;
 
 //place holders for the player and the spawn point
 public Transform spawnPoint;
 public GameObject player;
 
 //place holders for the scripts on the character controller
 public CharacterMotor motorScript;
 public MouseLook lookScript;
 
 //This resets to game back to the way it started
 private void InitLevel()
 {
     time = 0;
     isRunning = true;
     isFinished = false;
     
     //move the player to the spawn point
     player.transform.position = spawnPoint.position;
     
     //Allow the character controller to move and
     //look around
     motorScript.enabled = true;
     lookScript.enabled = true;
 }
 
 // Use this for initialization
 void Start () {
     
     //prevent the character controller
     //from looking around
     motorScript.enabled = false;
     lookScript.enabled = false;
 }
 
 // Update is called once per frame
 void Update () {
     
     //add time to the clock if the game
     //is running
     if(isRunning)
         time += Time.deltaTime;
 }
 
 //This runs when the player enters the finish
 //zone
 public void FinishedGame()
 {
     isRunning = false;
     isFinished = true;
     
     //freeze the character controller
     motorScript.enabled = false;
     lookScript.enabled = false;
 }
 
 
 //This section creates the Graphical User Interface (GUI)
 void OnGUI()
 {
     
     if(!isRunning)
     {
         string message;
         if(isFinished)
             message = "Click to Play Again";
         else
             message = "Click to Play";
         
         if(GUI.Button(new Rect(Screen.width / 2 - 70, Screen.height/2, 140, 30), message))
         {
             //start the game if the user clicks to play
             InitLevel ();
         }
     }
     
     //If the player finished the game, show the final time
     if(isFinished)
     {
         GUI.Box(new Rect(Screen.width / 2 - 65, 185, 130, 40), "Your Time Was");
         GUI.Label(new Rect(Screen.width / 2 - 10, 200, 20, 30), ((int)time).ToString());
     }
     //If the game is running, show the current time
     else if(isRunning)
     {
         GUI.Box(new Rect(Screen.width / 2 - 65, Screen.height - 115, 130, 40), "Your Time Is");
         GUI.Label(new Rect(Screen.width / 2 - 10, Screen.height - 100, 20, 30), ((int)time).ToString());
     }
     
 }

}

Finish Script:

using UnityEngine; using System.Collections;

public class FinishScript : MonoBehaviour {

 //This is a place holder for the script that controls the game
 public GameControlScript gameControlScript;
 
 // Use this for initialization
 void Start () {
 
 }
 
 // Update is called once per frame
 void Update () {
 
 }
 
 
 //This states that when an object enters the finish zone, let the
 //game control know that the current game has ended
 void OnTriggerEnter(Collider other)
 {
     gameControlScript.FinishedGame();
 }

}

Here are the errors that appear when I move the script codes into the script folder.

Assets/Scripts/GameControlScript.cs(6,6) error CS1003: syntax error, '.' expected Assets/Scripts/GameControlScript.cs(6,48) error CS8032 internal compiler error during parsing, run with -v for details