57378 Need ASP help. Quick Fix

I have a paypal coupon site that currently isn't working properly. Visit this page: [login to view URL] When someone tries to redeem a coupon and fills out the necessary information then clicks on the "redeem coupon code" button, they are only redirected back the the same page. They should be redirected to Paypal. If you are an ASP programmer and can fix this quick , please let me know ASAP. My current programmer is on vacation until next week and I really need this done.