Não Consigo acessar o Administrator do meu site

Substitua todo o index.php da pasta administrator por esse que é o padrão:

<?php
/**
* @version $Id: index.php 14401 2010-01-26 14:10:00Z louis $
* @package Joomla
* @copyright Copyright (C) 2005 - 2010 Open Source Matters. All rights reserved.
* @license GNU/GPL, see LICENSE.php
* Joomla! is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See COPYRIGHT.php for copyright notices and details.
*/

// Set flag that this is a parent file
define( '_JEXEC', 1 );

define('JPATH_BASE', dirname(__FILE__) );

define('DS', DIRECTORY_SEPARATOR);

require_once( JPATH_BASE .DS.'includes'.DS.'defines.php' );
require_once( JPATH_BASE .DS.'includes'.DS.'framework.php' );
require_once( JPATH_BASE .DS.'includes'.DS.'helper.php' );
require_once( JPATH_BASE .DS.'includes'.DS.'toolbar.php' );

JDEBUG ? $_PROFILER->mark( 'afterLoad' ) : null;

/**
* CREATE THE APPLICATION
*
* NOTE :
*/
$mainframe =& JFactory::getApplication('administrator');

/**
* INITIALISE THE APPLICATION
*
* NOTE :
*/
$mainframe->initialise(array(
'language' => $mainframe->getUserState( "application.lang", 'lang' )
));

JPluginHelper::importPlugin('system');

// trigger the onAfterInitialise events
JDEBUG ? $_PROFILER->mark('afterInitialise') : null;
$mainframe->triggerEvent('onAfterInitialise');

/**
* ROUTE THE APPLICATION
*
* NOTE :
*/
$mainframe->route();

// trigger the onAfterRoute events
JDEBUG ? $_PROFILER->mark('afterRoute') : null;
$mainframe->triggerEvent('onAfterRoute');

/**
* DISPATCH THE APPLICATION
*
* NOTE :
*/
$option = JAdministratorHelper::findOption();
$mainframe->dispatch($option);

// trigger the onAfterDispatch events
JDEBUG ? $_PROFILER->mark('afterDispatch') : null;
$mainframe->triggerEvent('onAfterDispatch');

/**
* RENDER THE APPLICATION
*
* NOTE :
*/
$mainframe->render();

// trigger the onAfterRender events
JDEBUG ? $_PROFILER->mark( 'afterRender' ) : null;
$mainframe->triggerEvent( 'onAfterRender' );

/**
* RETURN THE RESPONSE
*/
echo JResponse::toString($mainframe->getCfg('gzip'));
?>

Nossa Deu Certo!!

Não sei nem como agradecer..

Muito Obrigado!!!

Valeu Gente. Obrigado mais uma vez