WALL collision detection problem... help!!!!

hi . i have a 2d game and i have a player with a script attached to him as u can see bellow.on the other hand i have some game objects as walls .

im using capsul colider with is trigger off and rigid body with use gravity on him but no is kinematic,on my player . and its better to mention that ive set all kinds of collision detection from district to continiuous dynamic on my player but nothing changed . right now its set to district . and also ive freezed my player on x and z position and also rotation .

and on my wall game object we have no script ... and im just using a box colider with no is trigger .

now the problem is that when i jump on the wall , player can walk on top of that and every things ok . but if i colide with wall from left or right or down side , i mean for example if i go straight through a wall left or right side , player passes through the wall !!!!

i just want to stop passing through walls and be able to recognize them az an real wall and colide with them ! so i really need your help .

this is my player entire script , i just put the whole script available for u for better understanding but dont pay attention to some of those comments , cuz their not related to this part ! :

var playerSpeed : int;

var playerRunSpeed : int;

var jumpHeight : float;

var extraJumpHeight : float;

var fireBallPrefab : Rigidbody;

var playing : boolean;

static var score = 0;

static var coins = 0;

static var lives = 3;

function Start ()

{

    spawn();
    playing = true;

}

function Update ()

{

if (playing)

{

//1- player movement

 amtToMove = playerSpeed * Input.GetAxis("Horizontal") * Time.deltaTime;     // amount to move the player 
   
 transform.Translate(Vector3.right * amtToMove, Space.World);   
     

//------------------------------------------------------------------------

//2- player rotation...!

  if (Input.GetKey("left") || Input.GetKey("a"))
  {  
    transform.rotation = Quaternion.Euler(0,180,0);
        
  }      
  if (Input.GetKey("right") || Input.GetKey("d"))
  {
  
    transform.rotation = Quaternion.Euler(0,0,0);    
        
  }

//------------------------------------------------------------------------------------------------------------------------

 //3- player jump
 // player can countinusly jump when you hold the up button. if its transform position in y axis is (on the ground) 
 //here should add extra jump code later
 
 // extra jump ?X?
 

if ( (Input.GetKey("up") || Input.GetKey("w") )&& Mathf.Abs(rigidbody.velocity.y) <0.01 )

   {
     audio.Play();
     rigidbody.velocity.y = 4.5;
     
     amtToJump = jumpHeight + Time.smoothDeltaTime ;
     transform.Translate(Vector3.up * amtToJump );
     

   }

 

//--------------------------------------------------------------------------------------------------------------

 //4- instantiate fireBall
    
 if (Input.GetKeyDown("space"))
 {
    var tempfireBall : Rigidbody;
    tempfireBall = Instantiate(fireBallPrefab,Vector3(transform.position.x , transform.position.y, transform.position.z),transform.rotation);
 }   
    

}

}

//--------------------------------------------------------------------------------------------------------------

 //5- onGUI function/scoring part...

function OnGUI()

{

GUI.Label(Rect(10,10,120,20), "Score: " +playerScript.score);

GUI.Label(Rect(10,30,120,20), "coins: " +playerScript.coins);

GUI.Label(Rect(10,50,120,20), "lives: " +playerScript.lives);

}

//--------------------------------------------------------------------------------------------------------------

 //6- player collisions
 
 

function OnCollisionEnter(other : Collision)

{

 // ?X? ===> here we want to check direction of the collision ...?!

//if(other.gameObject.tag == "leftBody" || other.gameObject.tag == "rightBody")

if(other.gameObject.tag == "enemy" )

 { 

 playing = false;
 playerScript.lives -= 1;
   
 amtToJump = jumpHeight + Time.smoothDeltaTime ;
 transform.Translate(Vector3.up * amtToJump );
 transform.position.z = -1;
 
 yield WaitForSeconds(3);
 
   
    if (playerScript.lives == 2)
    {
    Application.LoadLevel(1);
    }
    
    
    if (playerScript.lives == 1)
    {
    Application.LoadLevel(2);
    }
 
    if (playerScript.lives == 0)
    {
    Application.LoadLevel(3);
    playerScript.score = 0;
    playerScript.coins = 0;
    playerScript.lives = 3;

    }
 
    
    
 
 }  
 
 
 

if(other.gameObject.tag == "deathZone") {

 playing = false;
 playerScript.lives -= 1;
     
 
     if (playerScript.lives == 2)
    {
    Application.LoadLevel(1);
    }
    
    
    if (playerScript.lives == 1)
    {
    Application.LoadLevel(2);
    }
 
    if (playerScript.lives == 0)
    {
    Application.LoadLevel(3);
    playerScript.score = 0;
    playerScript.coins = 0;
    playerScript.lives = 3;

    }
       
 }  
 
 

if(other.gameObject.tag == "flag") {

  var playerTransform = GameObject.Find("flag").transform;
   
  playerTransform.parent = transform;
     
 }
  
    
        

if(other.gameObject.tag == "door")

 { 

   playing = false;

   gameObject.renderer.enabled = false;
   
   yield WaitForSeconds(1.5);
   
   Application.LoadLevel(4);

    playerScript.score = 0;
    playerScript.coins = 0;
    playerScript.lives = 3;

 }      
    
      
        

if(other.gameObject.tag == "teleportGate1")

 {   
        
   if (Input.GetKey("down") || Input.GetKey("s")) 

    {

       print("xxx2");
       transform.position.z = 0.8;

    } 
    
 }
 
        

if(other.gameObject.tag == "teleportGate2")

 {  

   Application.LoadLevel(5);

 }
 
 

if(other.gameObject.tag == "doorToLevel1")

 {   

   playing = false;
   gameObject.renderer.enabled = false;
   
   yield WaitForSeconds(1.5);
   Application.LoadLevel(0);    
 
 }
 

}

//--------------------------------------------------------------------------------------------------------------

  //7- player spawn function...

function spawn()

{

transform.position = GameObject.FindGameObjectWithTag("spawnPoint").transform.position;

}