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I just checked our payment form and the "Card Security Code" field did show:
It also shows in your screenshot. It looks to me like you have entered your name where the credit card number goes and the credit card number where the security code goes. Enter the information in this order:
Credit Card Number
Card Secrurity Code
Your name and address were entered on the previous page. This page is only for the card numbers and expiration dates.
If you have any further questions, let us know and we will be happy to help.