wpsc_short code

I’m trying to display a product link instead of displaying the product page. I have a calendar of courses and I only want to display a link to a product next to the course in a calendar so when the sign up date has passed the link will disappear. I know how to make the link disappear, I just don’t know how to display one product in a category at a time, instead of having all the products show up.

https://www.ads-software.com/plugins/wp-e-commerce/