Viewing the forum, it looks like we can use a different credit card processing service than those recommended by Zen Cart. I use Central Payment as my in-store credit card processing service. They say I can integrate their system into an ecommerce (shopping cart) website. I have loaded Zen Cart and all is working well, but I have not yet installed accepting credit card payments. I see there are a few options that are already installed with Zen Cart that I can activate easily, but I want to use Central Payment. Can I do so? How do I go about setting it up? Will Central Payment provide that step-by-step info, or can someone in the forums point me in the right direction to starting to integrate Central Payment with Zen Cart? Thanks! :-)