Your file would look like this
PHP Code:
<?php
// ####################### SET PHP ENVIRONMENT ###########################
error_reporting(E_ALL & ~E_NOTICE);
// #################### DEFINE IMPORTANT CONSTANTS #######################
define('NO_REGISTER_GLOBALS', 1);
define('GET_EDIT_TEMPLATES', true);
define('THIS_SCRIPT', 'rules');
// ################### PRE-CACHE TEMPLATES AND DATA ######################
// get special phrase groups
$phrasegroups = array();
// get special data templates from the datastore
$specialtemplates = array();
// pre-cache templates used by all actions
$globaltemplates = array();
// pre-cache templates used by specific actions
$actiontemplates = array();
// ######################### REQUIRE BACK-END ############################
require_once('./global.php');
// #######################################################################
// ######################## START MAIN SCRIPT ############################
// #######################################################################
// if user is guest show no permission error
//if (!$bbuserinfo['userid'])
//{
// print_no_permission();
//}
::YOUR CODE HERE::
eval('$navbar = "' . fetch_template('navbar') . '";');
eval('print_output("' . fetch_template('YOUR_TEMPLATE_NAME') . '");');
?>