Have run through my other posts and simply reinstated one of the older confirm_cart.php pages when it did work.
I don't have time to work out these bugs any more - I just want to get things up and running.
Regarding what happens when you press "Continue" though, after filling the address details in, it appears to be jumping back to a hotspot at the "Order Confirmation" section so, if there are a few items in the cart, you can't see the payment entry section unless you scroll down.
Is there any way to have this jump to the Payment Info section instead?