The E-Commerce Building Blocks package includes the Shopping cart, the payment gateways are PayPal, Email, Verisign, Authorize.Net and 2Checkout. You can only choose one payment option for the shopping cart checkout. To accept payments you will have to sign up for an account at one of the following: PayPal (www.paypal.com), Verisign (www.verisign.com), Authorize.net (www.authorize.net) or 2Checkout (www.2CheckOut.com).