Ok, I got it now. Thanks Esmi. So the key to all this is eShop does not have the built in function to keep the buyer on the page when processing the payments. So after they fill in their info and hit "proceed to confirmation" or whatever the actual "billing" step is it will bring you to a SECURE paypal page, authorize.net page etc BUT the key is the secure part is done off the original site.
JUST A FYI: This is from the Authorize.net site: (see bold)
Does Authorize.Net provide Secure Sockets Layer (SSL) certificates?
Authorize.Net does not directly provide Secure Sockets Layer (SSL) certificates to merchants. Our services, including the Authorize.Net Payment Form, are secured with a SSL certificate to better protect sensitive data. However, if your website has its own payment form, or if you collect potentially private or sensitive data from your customers, you may want to install a SSL certificate on your website in order to help protect that data. You may be required by your Merchant Service Provider to ensure that your Web pages use a SSL certificate in order to comply with the Payment Card Industry Data Security Standard (PCI DSS).
Most Web hosting companies can provide SSL certificates, some of which would be shared with other merchants, while others may be customized for your website's domain name. Alternately, most Web hosting companies can install SSL certificates bought from accredited Certification Authorities. Please contact your Web hosting company regarding their SSL support options.
Authorize.Net has teamed up with Comodo, Inc.--the world's second largest Certification Authority, securing over 500,000 customers worldwide--to offer SSL certificates to Authorize.Net merchants at a discounted price. With an SSL certificate issued by Comodo, your customers will be assured that all data passing between your website and the payment gateway remains secure and confidential, leading to higher consumer confidence and potentially higher sales conversion rates.
Comodo offers SSL certificates at a fraction of the price of comparable certificates from other companies, making these certificates the most cost-e 128-bit SSL certificates available today.
For more details, including pricing and purchase information, please visit http://authorize.net/comodo