1) Copy the Catalog folder from the Basispay integration kit and merge it with Catalog folder of OSCommerce folder on your root directory.(Accessible from 	your Web Hosting Control Panel, eg Cpanel). [In other words, copy the end files/folders in the integration kit downloaded according to the files and folder structure in your OSCommerce module in your root directory]

2.Login to your osCommerce admin panel and navigate Modules->Payment->Install Module select "Basispay Checkout" .

3.Click on "Edit" and fill the details as mentioned below.Enter the ApiKey and Salt . Apikey and salt are given by Basispay Team.

4.Click on Save .You should now be able to make a transaction.