login problemer

jeg bruger frac.dk og dette stykke kode har virket fint, men det gør det ikke mere... hvad kan der være galt?

<?php
session_start();
        require 'include.inc';
    $uname = $_POST['uname'];
    $password = $_POST['password'];

    //set up the query
    $query = "SELECT * FROM user
            WHERE username='$uname' AND password='$password' and verified='y'";
           
    //run the query and get the number of affected rows


    $result = mysql_query($query, $connection) or die('error making query');
    $affected_rows = mysql_num_rows($result);

    //if there's exactly one result, the user is validated. Otherwise, he's invalid
    if($affected_rows == 1) {
   
                $_SESSION['letmein'] = true;
                $result = mysql_query("SELECT id, username AS uuname FROM user where username='$uname'",$connection);
                if ($myrow = mysql_fetch_array($result)) {

                            $_SESSION["id"]=$myrow['id'];
                            $_SESSION["username"]=$myrow['uuname'];

              header("Location: start.php?option=main");
                    } else {

                        echo "Sorry, no records were found!";   

                    }
       
       
        }  else {
        echo mysql_error();
        header ("Location: index.php?invalid=invalid username/password");
    }
?>