The plugin for osCommerce is no longer supported
osCommerce
osCommerce is an online shop e-commerce solution that offers a wide range of out-of-the-box features allowing online stores to be set up quickly, easily and for free as an Open Source based solution released under the GNU General Public License.
osCommerce was started in March 2000 and has since matured to a service that is currently powering 12,263 registered live shops around the world.