min POST sender til en anden server virker ikke

Hvorfor sender den ikke beskeden til Arto???
<?php
class ArtoBot
{
      var $writeTo        = "Steven";
      var $yourName    = "mitnavn";
      var $yourID        = xxxxx;
      var $writeID        = 2095355;
      var $privateMSG  = 0;
      var $spamTxt      = "X";

        function HTTP_Request ( $host, $query )
        {
             
              $path = explode( "/", $host );
              $host = $path[0];
              unset( $path[0] );
              $path = "/".(implode("/", $path ));

              $post = "POST $path HTTP/1.1\r\n";
              $post .= "Host: $host\r\n";
              $post .= "Content-type: application/x-www-form-urlencoded\r\n";
              $post .= "User-Agent: PHP Script by www.HKB.it\r\n";
              $post .= "Content-length: ".strlen($query)."\r\n";
              $post .= "Connection: close\r\n\r\n";
              $post .= "$query";
 
              $post .= $query;

              $sock = fsockopen( $host, 80 );

              fwrite( $sock, $post );


              for( $i=0; !$i; ) {

              $q = fread( $sock, 8192 );
              $r .= $q;
              $i = ( $q == '' ) ? 1 : 0;

              }

              fclose( $sock );

              $c = explode( "\r\n\r\n", $r );

              $content["head"] = $c[0];
              $content["body"] = $c[1];

              if ( !$sock )
              {
                  echo "<span style=\"font-family:fixedsys;\">Kunne ikke connecte!</span>";
              } else {
                  echo "<span style=\"font-family:fixedsys;\">Klient forbundet til Arto.dk:80</span>";
              }

              echo print_r ( htmlentities ( $content["head"] ) );

        }

        function ShowDialog ( )
        {
            echo "<span style=\"font-family:fixedsys;\">";
            echo "Velkommen til klienten, " . $this->yourName . " (" . $this->yourID . ") <br />";
            echo "<span style=\"color:green;\">Botten blev bygget 19:42 08-06-2006</span> <br />";
            echo "Du sender nu beskeder til brugeren " . $this->writeTo . " (Settings: privat(" . $this->privateMSG . ") )<br />";
            echo "------------------------------------------------------------------------------<br /><br />";
            echo "</span>";
        }
}

$Bot = new ArtoBot;
$Bot->ShowDialog();
$Bot->HTTP_Request("www.arto.dk/brugere/gaestebog/skriv.asp?id=" . $this->writeID . "&brugernavn=" . $this->writeTo . "", "destinationFejl=&destinationOK=&verificationUserID=" . $this->yourID . "&beskrivelse=" . $this->spamTxt . "&privat=" . $this->privateMSG . "" );

?>