Hi,
What change did you do to the checkout cart exactly for that ?
If you want to modify the way the emails display, you indeed need to edit them via the menu System>Emails.
And if you want to add the tax to the shipping fee in the email, you want to modify the code:
if($config->get('price_with_tax')) {
$t = $currencyHelper->format($data->cart->order_shipping_price,$data->cart->order_currency_id);
}else{
$t = $currencyHelper->format($data->cart->order_shipping_price-@$data->cart->order_shipping_tax,$data->cart->order_currency_id);
}
$cartFooters[] = array(
'NAME' => JText::_('HIKASHOP_SHIPPING'),
'VALUE' => $t
);
in the preload area of the emails.