Посмотрите в файле components\com_virtuemart\themes\default\templates\checkout\get_shipping_address.tpl.php. Какая там стоит ссылка. Должна быть <a href="<?php $sess->purl(SECUREURL .basename($_SERVER['PHP_SELF']). "?page=account.shipto&next_page=checkout.index");?>"><?php echo $VM_LANG->_('PHPSHOP_ADD_SHIPTO_2')?></a>
Адрес правильный, на всяк случай содержание \get_shipping_address.tpl.php файла выложил (заметил что и ссылка "Задать вопрос по этому товару" тоже на главную ведет)
<?php
if( !defined( '_VALID_MOS' ) && !defined( '_JEXEC' ) ) die( 'Direct Access to '.basename(__FILE__).' is not allowed.' );
/**
*
* @version $Id: get_shipping_address.tpl.php 1828 2009-06-25 06:08:11Z Aravot $
* @package VirtueMart
* @subpackage templates
* @copyright Copyright (C) 2007-2008 soeren - All rights reserved.
* @license
http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.php
* VirtueMart is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See /administrator/components/com_virtuemart/COPYRIGHT.php for copyright notices and details.
*
*
http://virtuemart.net*/
ps_checkout::show_checkout_bar();
echo $basket_html;
echo '<br />';
?>
<div style="width: 100%; align:left;">
<?php
// CHECK_OUT_GET_SHIPPING_ADDR
// let the user choose a shipto address
echo ps_checkout::display_address();
?>
<br />
</div>
<div class="sectiontableheader" style="width: 100%; align: left; float: left;"> <?php echo $VM_LANG->_('PHPSHOP_ORDER_PRINT_CUST_SHIPPING_LBL')?></div>
<div style="width: 100%; align:left; float:left;">
<?php
$varname = 'PHPSHOP_CHECKOUT_MSG_' . CHECK_OUT_GET_SHIPPING_ADDR;
echo '<h4>'. $VM_LANG->_($varname). '</h4>';
?>
</div>
<!-- Customer Ship To -->
<div style="width: 100%; align: left; float: left;">
<?php
$ps_checkout->ship_to_addresses_radio($auth["user_id"], "ship_to_info_id", $ship_to_info_id);
?>
</div>
<br />
<div style="width: 100%; align: left; float:left;">
<?php echo $VM_LANG->_('PHPSHOP_ADD_SHIPTO_1')?>
<a href="<?php $sess->purl(SECUREURL .basename($_SERVER['PHP_SELF']). "?page=account.shipto&next_page=checkout.index");?>">
<?php echo $VM_LANG->_('PHPSHOP_ADD_SHIPTO_2')?></a>.
</div>
<!-- END Customer Ship To -->
<br />