Opencart-etranzact is a project mainly written in PHP, it's free.
An opencart payment extension to support eTranzact payment gateway. Opencart is a free and open source ecommerce web application
Opencart eTranzact Supports the eTranzact payment gateway.
It works with OpenCart V1.4.x Just copy the folders admin and catalog into your folder's ftp root. No file editing required. Any questions on the opencart-etranzact, feel free to send email to [email protected]. You can see the extension in action at http://shop.agbena.com