Yes after using marketpress since 2012 I am now using woocommerce.  Sadly marketpress is no longer being developed and is now open-source on GitHub.

When I installed WooCommerce it some how messes up the site.  In other words when I deactivate the old store the site is blank. I will be trying to fix this.  I may have to put the store on another site of mine for now.

Shame.  I liked it and if I go to woo-commerce you are stuck in a paid addon trap. 🙁 If I was good at PHP I would update it since its open-source on GitHub. I don’t know if it will process payment but I can’t add images to products.