[Jon]

You'll want to include your categories, etc., in your php file too. And set the location:

<?php

require "./auth.php";

require $xcart_dir."/include/categories.php";

if ($active_modules["Manufacturers"])
    include $xcart_dir."/modules/Manufacturers/customer_manufacturers.php";


if($active_modules["Bestsellers"])
	include $xcart_dir."/modules/Bestsellers/bestsellers.php";

$location[] = array(func_get_langvar_by_name("lbl_your_language_variable", ""));

#
# Assign Smarty variables and show template
#

$smarty->assign("main","newpage");

# Assign the current location line
$smarty->assign("location", $location);

func_display("customer/home.tpl",$smarty);
?>