I think when you add a coupon or apply in store credit, it renews that page with the new numbers on (less to pay at the bottom). If the coupon/credit completely covers it, you'll get a bill for $0 to pay, but you have to go through that part anyway.
I was a little confused the first time but it seems ok now.
Hope this helps.
Corum.

Message edited on: 02/08/2006 10:50