Use this module and your customers will see no difference in checkout! The beauty is, in the background, all Credit Card handling is done directly through Authorize.net. Features: Minimal installation. Simply apply an SQL patch and upload files! Use your existing Authorize.net AIM account Customers never leave your site! Open source! This means if your cart is customized, you can edit this module to work with your customized cart! Allows you not to need X-payments! Config option to limit the payment method to specific IPs for testing purposes!