Integrate SKU based coupon code for Mals Shopping Cart

We need to have a sale for a specific item on our website: [login to view URL] We use a Mal's Shopping Cart. Currently, we do not have this capability built into our website. From what I can tell, the [login to view URL] file builds a dynamic URL and sends it to our Mal's shopping cart: [login to view URL] I need this bit of code to include a SKU or scode so that a discount can be applied to the item. The URL seems to be built in part from the text files in "\collection_text\1". These files can be modified as necessary. Please make sure you have knowledge of Mal's so you can advise on the proper settings in the shopping cart as well. Thanks, Matt