Player-Network-Bug

I have a bug in my game, the host can move around and stuff, but he controls himself and another player model-thing, but the client player can move and stuff too but he doesn't see anyone, please Help me!!!

Code:

 var playerPrefab : GameObject;
 var spawnObject : Transform;
 
 var gameName : String = "level1";
 private var refreshing : boolean = false;
 private var hostData : HostData[];
 
 function OnGUI () {
 
 if(!Network.isClient && !Network.isServer) {
 
  if (GUI.Button(Rect(10,10,200,40),"Start Server")) {
         startServer();
 }
 
  if (GUI.Button(Rect(10,60,200,40),"Refresh Hosts")) {
         Debug.Log("Refresh");
         refreshHostList();
 }
     if(hostData) {
 
     for(var i:int = 0; i<hostData.length; i++) {
     
     if(GUI.Button(Rect(10,100 + (50 * i),200,40),hostData[i].gameName)) {
         Network.Connect(hostData[i]);
     
     
     }
     
     
 }
 
 }
 
 
 }
 
 
 }
 
 
 function Update () {
 
     if(refreshing) {
         if(MasterServer.PollHostList().Length > 0) {        
         refreshing = false;
         Debug.Log(MasterServer.PollHostList().Length);
         hostData = MasterServer.PollHostList();
         
         
         }
     
     
     }
 
 
 
 }
 
 
 function startServer () {
 
     Network.InitializeServer(32,25001, !Network.HavePublicAddress);
     MasterServer.RegisterHost("ZombieGame_Unity3d_12368","Regular Zombies","This is A level");
     
 }
     
     
     
 function OnServerInitialized () {
 
     Debug.Log("server initialized");
     spawnPlayer();
     
     
 }
 
 function OnConnectedToServer () {
 
     spawnPlayer();
 
 
 }
 
 function spawnPlayer () {
 
     Network.Instantiate(playerPrefab, spawnObject.position, Quaternion.identity, 0);
 
 }
 
 function OnMasterServerEvent(mse:MasterServerEvent) {
 
     if(mse == MasterServerEvent.RegistrationSucceeded) {
     Debug.Log("Registered Server");
     
     }
     
 }
     
     
 function refreshHostList () {
 
     MasterServer.RequestHostList("ZombieGame_Unity3d_12368");
     refreshing = true;
     
 }