Problemer med at registrere data hentet fra mysql

PHP kode 

 <?php
 /***************************************\
 *
 *      checklogin.php
 *
 \***************************************/
      session_start();
      $host="host"; // Host name
      $username="****"; // Mysql username
      $password="****"; // Mysql password
      $db_name="****"; // Database name
      $tbl_name="members"; // Table name
      
      // Connect to server and select databse.
      mysql_connect("$host", "$username", "$password")or die("cannot connect");
      mysql_select_db("$db_name")or die("cannot select DB");
      
      
      // username and password sent from form
      // To protect MySQL injection (more detail about MySQL injection)
      $myusr = stripslashes(mysql_real_escape_string($_POST['myusername']));
      $mypass = stripslashes(mysql_real_escape_string($_POST['mypassword']));
      
 
     // Database query.
      $sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
      $result=mysql_query($sql);
      
 
      $count = mysql_num_rows($result); //Tæller hvor mange rækker der passer my username og pass
      
      // If result matched $myusername and $mypassword, table row must be 1 row
     if($count == 1){
         // Register $myusername, $mypassword and redirect to file "forhandleservice.php"
         
         
         
         $_SESSION['username'] = $myusername; // Definerer brugenavnet
         
         echo "Tak fordi du loggede ind<br>Sender dig videre..";
         header("location: ../forhandlerservice.php");
     }
     else 
     {
         echo "Forkert brugernavn eller password";
         header("location: ../loginfejl.php");
     }
 ?>

PHP kode 

 <?php
 /***************************************\
 *
 *      Forhandlerservice.php
 *
 \***************************************/
 if(!isset($_SESSION['username'])){
     header('location: ../login.php'); // Send videre til login.
     die("Du er ikke logget ind."); // Dobbelt sikring, hvis han ikke sendes videre stop al kode herfra.
 }
     $host="host"; // Host name
     $username="****"; // Mysql username
     $password="****"; // Mysql password
     $db_name="****"; // Database name
     $tbl_name="members"; // Table name
      
     // Connect to server and select databse.
     mysql_connect("$host", "$username", "$password")or die("cannot connect");
     mysql_select_db("$db_name")or die("cannot select DB");
 
     $sql="SELECT * FROM $tbl_name WHERE username='$_SESSION['username']'";
     $result=mysql_query($sql);
     $row = mysql_fetch_array($result); //Henter alt info i den række
     
     echo "Velkommen til $row['navn']";
     echo "Hvor bor du henne $row['adresse']";
 
 ?>