osCommerce 2.2 MS2 (060817)
osCommerce 2.2 MS2 (060817) is the version of osCommerce prior to osCommerce Online Merchant RC1. Many osCommerce add-ons are not compatible with RC1, but RC1 is PHP 5 compatible and is mostly MySQL 5 compatible. MS2 is PHP 5 compatible, but not MySQL 5.
Filesize: 1.8 MB

osCommerce 2.2 MS2 Knowledge Base (PDF)
This is the PDF document containing the Knowledge Base for osCommerce 2.2 MS2.
Filesize: 431 kB

osCommerce Online Merchant RC1
osCommerce Online Merchant RC1 is believed to be the final "Release Candidate" before the final release of osCommerce 2.2 MS2. It is PHP 5 compatible, and mostly MySQL 5 compatible, and will work with Register Globals 'On' or 'Off' in php.ini. However, many of the osCommerce add-ons written for earlier versions will not work with RC1.
Filesize: 1.88 MB

Products Showcase for osCommerce 2.2 MS2 (060817)
This add-on is written for osCommerce 2.2 MS2 (060817) and allows you to specify which products appear on your homepage - replacing the standard New Products module. The products are selected from within your osCommerce admin panel.
Filesize: 8.48 kB