Confirm.php template file
From Shopp Documentation
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This template provides the order confirmation page shown after the checkout form, but before the order is processed. The order confirmation page is intended to show the customer the final, actual cost of the order before being processed.
It is not always necessary, as the final cost is often unchanged from the checkout form, however, there are cases when there may be differences. In particular, taxes cannot be tabulated until after the shipping address is fully known. That is only available when the checkout form is completed and submitted. Since the order total has to change to accommodate taxes, the customer must be informed of the change and approve the new charges before the order can be processed.
The order confirmation template shows a summary of the order (from the summary.php template file), including the items ordered, their subtotal, shipping costs, taxes and the total and provides a confirmation button to proceed with the order.
