Coupon Codes and PayPal

Hi all,

Working on getting coupon codes to convert and move to paypal checkout and any help would be appreciated. The Coupon codes apply to the product, I click "continue checkout" it takes me to shipping page I fill that page out and then I click again "checkout" button it redir to Paypal and the amount is the correct amount if the coupon had not been accepted?? Help me I have beat my head against the wall on this one.

solar2adventure.com

Thanks