- Replace: 
SURBL.php
require_once 'Cache/Lite.php';
require_once dirname(__FILE__) . '/../../Cache/Lite.php';

require_once 'HTTP/Request.php';
require_once dirname(__FILE__) . '/../../HTTP/Request.php';

require_once 'Net/CheckIP.php';
require_once dirname(__FILE__) . '/../CheckIP.php';

require_once 'Net/DNSBL.php';
require_once dirname(__FILE__) . '/../DNSBL.php';