Replace lines 1-12 with:
<?php
@session_start();
$startKFMDir = getcwd();
chdir(dirname(__FILE__));
require_once( "library.php" );
?>
<?php require_once( "../../Connections/local.php" ); ?>
<?php require_once( "../../webassist/security_assist/helper_php.php" ); ?>
<?php
if (!WA_Auth_RulePasses("Administrator") && !WA_Auth_RulePasses("Super Administrator")){
WA_Auth_RestrictAccess("../../index_cms.php");
}
?>
and replace "Administrator" with the security assist rule you want restricted access for.