HTTP_Request nao conecta - Versão de Impressão

Código:
<?php

 define("ACC_NAME", "acc");

 define("ACC_PASS", "pw");

 define("GROUP_ID", "gid");

 define("MY_STEAM_ID", "sid");

 $invite_steam_id = $_GET['i'];



 $ids = file('invited_ids.txt');

 foreach($ids as $id) {

   $id = trim($id);

   if ( $id == $invite_steam_id )

     die($id .": Already invited!\n");

 }



 function GetFriendID( $steam_id ) {

   if ( !$steam_id )

     return 0;

   $auth = explode(':', $steam_id);

   if ( !$auth[2] )

     return 0;

   $fid = gmp_init($auth[2]);

   $fid = gmp_mul($fid, "2");

   $fid = gmp_add($fid, "76561197960265728");

   $fid = gmp_add($fid, $auth[1]);

   return gmp_strval($fid);

 }





 require_once "HTTP/Request.php";



 $req = &new HTTP_Request('https://steamcommunity.com');

 $req->setMethod(HTTP_REQUEST_METHOD_POST);



 $req->addPostData("action", "doLogin");

 $req->addPostData("goto", "");



 $req->addPostData("steamAccountName", ACC_NAME);

 $req->addPostData("steamPassword", ACC_PASS);



 echo "Login: ";



 $res = $req->sendRequest();

 if (PEAR::isError($res))

   die($res->getMessage());



 $cookies = $req->getResponseCookies();

 if ( !$cookies )

   die("fail!\n");



 echo "ok\n";



 foreach($cookies as $cookie)

   $req->addCookie($cookie['name'],$cookie['value']);



 $mid = GetFriendID(MY_STEAM_ID);

 $fid = GetFriendID($invite_steam_id);

 $url = "http://steamcommunity.com/actions/GroupInvite?type=groupInvite&inviter=$mid&invitee=$fid&group=";GROUP_ID;



 echo "Inviting $invite_steam_id ($fid): ";

 $req->setMethod(HTTP_REQUEST_METHOD_GET);

 $req->setUrl($url);



 $res = $req->sendRequest();

 if (PEAR::isError($res))

   die($res->getMessage());



 $data = $req->getResponseBody();

 preg_match("/CDATA\[([^\]]+)\]/", $data, $matches);

 echo $matches[1] . "\n";

 if ( $matches[1] == "OK" )

   file_put_contents('invited_ids.txt', $invite_steam_id . "\n",

 FILE_APPEND);

 ?>