I used the language override facility to change _JOOM_EMAIL_BILL from "Bill" to "Tax Invoice". When the invoice is emailed it works fine - I see Tax Invoice on the PDF. However, when I go to Configure->Shop Info and click on Preview PDF, I still get "Bill".
Joomla: 2.5.17
JoomShopping: 3.16.4
PHP: 5.3.27
Website Url: http://www.acdnsw.org.au/index.php?option=com_jshopping&controller=products&task=&category_id=&manufacturer_id=&label_id=&vendor_id=&page=&price_from=&price_to=&product_id=&Itemid=433
JoomShopping: 3.16.4
PHP: 5.3.27
Website Url: http://www.acdnsw.org.au/index.php?option=com_jshopping&controller=products&task=&category_id=&manufacturer_id=&label_id=&vendor_id=&page=&price_from=&price_to=&product_id=&Itemid=433