Inventory Add Item Textures Don't Show?

I have an inventory and my InventoryAddItem script doesn't correctly connect to my InventoryGUI script:

InventoryAddItem:

 #pragma strict
     //Private
     var TheInventory : InventoryGUI;
     var TheTextures : PlayerInventory;
     var ArrayGrid = 0;
     
     static var InventoryNewItemAdded = -1;
     
     //Icons
     var BlankIcon : Texture;
     var TheNewItem : Texture;
     
     function Start () 
     {
        TheInventory = GetComponent(InventoryGUI);
        TheTextures = GetComponent(PlayerInventory);
     }
     
     function newItem () 
     {
        if (InventoryAddItem.InventoryNewItemAdded > -1)
        {
           TheNewItem = TheTextures.itemTexture[InventoryAddItem.InventoryNewItemAdded];
           if (ArrayGrid < TheInventory.Grids.length)
           {
              if (TheInventory.Grids[ArrayGrid].image == BlankIcon)
              {
                 TheInventory.Grids[ArrayGrid].image = TheNewItem;
                 ArrayGrid = 0;
                 InventoryAddItem.InventoryNewItemAdded = -1;
              }
              else if (TheInventory.Grids[ArrayGrid].image != BlankIcon)
              {
                 ArrayGrid += 1;
              }
           }
        }
     }

InventoryGUI:

 #pragma strict
 //Private Variables
 private var InventoryOn = false;
 private var scrollBarChopGrid : Vector2 = Vector2.zero;
 private var GridValue : float = -1;
 var myskin : GUISkin;
 
 //GUI Pos/Size
 var NamePosition : Vector2 = new Vector2(30,30);
 var NameSize : Vector2 = new Vector2(250,250);
 var GridPosition : Vector2 = new Vector2(10,5);
 var GridSize : Vector2 = new Vector2(323,410);
 var ClosePosition : Vector2 = new Vector2(312,5);
 var CloseSize : Vector2 = new Vector2(35,35);
 var ScrollPosition : Vector2 = new Vector2(312,5);
 var ScrollSize : Vector2 = new Vector2(355,500);
 var WindowPosition : Vector2 = new Vector2(0,0);
 var WindowSize : Vector2 = new Vector2(360,360);
 var DragWindowPosition : Rect = Rect(0,0,WindowSize.x,WindowSize.y);
 
 //Textures
 var InventoryWindow : Texture;
 var CloseIcon : Texture;
 var Grids : GUIContent[];
 
 function Update () 
 {
    var AddingNewItem : InventoryAddItem = GetComponent(InventoryAddItem);
    //On or Off
    if (Input.GetKeyUp ("i"))
    {
    
       if (InventoryOn == false)
       {
          InventoryOn = true;
       }
       else if (InventoryOn == true)
       {
          InventoryOn = false;
          scrollBarChopGrid.y = 0;
       }
    }
    //Window Drag Fix
    if (Input.GetKey("left shift"))
    {
       if (Input.GetKeyDown("i"))
       {
          DragWindowPosition.x = 0;
          DragWindowPosition.y = 0;
          
       }
    }
    AddingNewItem.newItem();
 }
 
 function OnGUI()
 {
    GUI.skin = myskin;
    if (InventoryOn == true)
    {
       DragWindowPosition = GUI.Window(0, DragWindowPosition, DoMyWindow, "");
    }
 }
 
 function DoMyWindow(windowID : int)
 {
    if (InventoryOn == true)
    {
       GUI.BeginGroup(new Rect(WindowPosition.x, WindowPosition.y, WindowSize.x, WindowSize.y), InventoryWindow);
          //Name
          GUI.Label(Rect(NamePosition.x, NamePosition.y, NameSize.x, NameSize.y), "Your Inventory");
       
          //Close Button
          if (GUI.Button(Rect(ClosePosition.x, ClosePosition.y, CloseSize.x, CloseSize.y), CloseIcon))
          {
             InventoryOn = false;
          }
          //Scroll Bar
         scrollBarChopGrid = GUI.BeginScrollView(Rect (ScrollPosition.x, ScrollPosition.y, ScrollSize.x, ScrollSize.y), scrollBarChopGrid, Rect(0,0,0,420));
             // Grid
             GridValue = GUI.SelectionGrid(Rect(GridPosition.x, GridPosition.y, GridSize.x, GridSize.y), GridValue, Grids, 5);
          GUI.EndScrollView();
          
          //Dragable Window
          GUI.DragWindow (Rect (WindowPosition.x, WindowPosition.y, 10000, 40));
       GUI.EndGroup();
          
    }
 }

Does anyone know why I can't see the inventory item texture in my inventory?