Linkpoint Basic
From Documentation
Click here to setup an account for Linkpoint
Payment Provider Name - Enter the name of the payment provider here.
Show As - If you have multiple forms of payment setup, your customers will have a choice as to which method they prefer. Enter the value you would like your customers to see such as "Credit Card", "Paypal" or "Mastercard, Visa" (without the quotes.)
Active - Place a check in the box to make this payment provider active. If this box is not checked, the payment provider will not show up in the payment provider list during checkout.
Demo - If you would like to test the payment provider settings, place a check in the "Demo" box.
Store Number - Enter your Linkpoint Store Number here.
Take Card Number on your site - Please enter either a Y or N to indicate whether you would like your customers to be forwarded to linkpoint's site to enter their credit card number. If you want to take the card on your site you will need an SSL certificate installed and also have CURL installed.
Press the "Submit" button to save your changes.
Once you have Linkpoint setup in your classifieds administration you will then need to visit your Linkpoint administration and go to your connection settings.
From this screen you need to enter the Order Submission URL which is http://www.yoursite.com/usercheckout.php.
Next on the thank you page click the check box that says URL is a CGI script.