Generating XSPF Playlist - Doesn't work on IE

I use the free XSPF flash player to play my music on my website. I am taking info from the database and generating the playlist "on-the-fly" for that song. However, it works on FireFox but not IE. I have tried a couple different Content-Types in the header but to no avail.

Here is the exact code in the PHP file, and a link so you can view the output.

To test the site on IE:
http://www.dannydotguitar.com/index.php
And click the little Play arrow button next to a song name.

XML output:
http://www.dannydotguitar.com/playlist.php?id=3

Playlist.php source code:

PHP Code:

---

<?php
  require_once('include/vars.php');
  header('Content-Type: text/xml');
  header("Pragma: no-cache");
  header("Cache-Control: no-cache, must-revalidate, max_age=0");
  header("Expires: 0"); 
  require_once('include/db.php');
  $dbc = db_connect();
?>
<?php echo '<'; echo '?xml version="1.0" encoding="UTF-8"'; echo ' ?'; echo '>'; ?>

<?php
  function append_ifnot($p_string, $p_append) {
    if(substr($p_string, -strlen($p_append)) != $p_append) {
      return $p_string.$p_append;
    } else {
      return $p_string;
    }
  }
  
  if(is_numeric($_GET['id'])) {
    $settings['site_url'] = 'http://www.dannydotguitar.com/';
    $q = "SELECT * FROM songs WHERE id='{$_GET['id']}' LIMIT 1";
    $r = mysql_query($q) or die(mysql_error());
    if(@mysql_num_rows($r)>0) {
      $song = mysql_fetch_array($r, MYSQL_ASSOC);
      ?>
      <playlist version="0" xmlns="http://xspf.org/ns/0/">
      <title><?php echo $song['name']; ?></title>
      <info><?php echo append_ifnot($settings['site_url'],'/') . 'view_song.php?id=' . $song['id']; ?></info>
      <trackList>
        <track>
          <location><?php echo append_ifnot($settings['site_url'],'/'); ?>songs/<?php echo $song['url']; ?></location>
          <?php
          if(strlen($song['image_url'])) {
          ?>
          <image><?php echo append_ifnot($settings['site_url'],'/'); ?>images/songs/<?php echo $song['image_url']; ?></image>
          <?php
          }
          if(strlen($song['description'])) {
          ?>
          <annotation><?php echo substr(strip_tags($song['description']),0,57) . '...'; ?></annotation>
          <?php
          }
          ?>
          <creator>Danny Elkins</creator>
          <?php
          if(strlen($song['name'])) {
          ?>
          <title><?php echo $song['name']; ?></title>
          <?php
          }
          if(strlen($song['runtime'])) {
          ?>
          <duration><?php echo $song['runtime']; ?></duration>
          <?php
          }
          ?>
        </track>
        <?php
    }
  }
  
  unset($song);
?>

  </trackList>
</playlist>

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