This documentation is written for osCommerce 2.2MS2 and osCMax v1.5.5 and newer.
It contains a wealth of documentation covering most aspects of osCMax and osCommerce, from installation instructions to how-to topics on all aspects of running an active e-commerce site.
osCommerce 2.2 MS2 Guide :: This guide covers standard osCommerce without all the extras in osCMax. If you are using standard osCommerce 2.2 MS2, this is the guide for you.
How-To Section :: How to Hack osCommerce to do what you want