Can you check my casing?

I can't figure out what is wrong, it only displays a not rated image.

If you would like to see what I am talking about it, just go to http://www.humorzilla.com and look at a joke. It's on the right hand side.

Thanks in Advance for any help.

//get the content type
$q9 = "select count(ItemID) as n, sum(ItemContent) as r from dd_items where ItemID = '$a9[ItemID]' ";
$r9 = mysql_query($q9) or die(mysql_error());
$a9 = mysql_fetch_array($r9);

switch( $a9[0] ) {
case '5':
      $Item_ContentImage = "<img src=\"templates/images/xpluscontent.jpg\" border=\"0\">" ;
      break ;
case '4':
      $Item_ContentImage = "<img src=\"templates/images/rpluscontent.jpg\" border=\"0\">" ;
      break ;
case '3':
      $Item_ContentImage = "<img src=\"templates/images/tpluscontent.jpg\" border=\"0\">" ;
      break ;
case '2':
      $Item_ContentImage = "<img src=\"templates/images/pgpluscontent.jpg\" border=\"0\">" ;
      break ;
case '1':
      $Item_ContentImage = "<img src=\"templates/images/gpluscontent.jpg\" border=\"0\">" ;
      break ;
case '0':
      $Item_ContentImage = "<img src=\"templates/images/notratedpluscontent.jpg\" border=\"0\">" ;
      break ;
default:
      $Item_ContentImage = "<img src=\"templates/images/notratedpluscontent.jpg\" border=\"0\">" ;
} 

PHP: