460460 Interspire Shopping Cart Mod

Hi, We are currently using interspire shopping cart basic edition as our shoppping cart. Currently interspire allows you to set coupon codes that allows you to give discounts in percent off a product or so much money off of a product. We want to ability to have a coupon code that allows us to offer free shipping. I know this should be a very simple task for anyone who has worked with interspire shopping cart. This is a live store so everything has to run smoothly. I look forward to your bids and lets please be affordable and reasonable. Any highball bids will be deleted.