@Website Rob, the as-shipped code fragment reads:
Code:
                    ob_start ();
                    require ($template->get_template_dir ('tpl_modules_checkout_one_shipping.php', DIR_WS_TEMPLATE, $current_page_base, 'templates'). '/tpl_modules_checkout_one_shipping.php');
                    $shipping_html = ob_get_clean ();
                    ob_flush ();
@y051313, I used the credentials you sent on April 15 to login and went to checkout. It looks to me like the AJAX request/response information is correctly flowing properly on your beta .net site. I didn't click through to completion, since there was a product in the test-user's cart when I got there. Please advise.