Contrib Installer is an easy way to install contributions for osCommerce without manually editting files.
Installing a contribution with Contrib Installer requires a simple package which describes the contribution. I have included the Image Check contribution as an example. I am currently working on supporting other contributions (need help here!), so hopefully there will soon be Contrib Installer packages for many other contributions. If you want to help with making packages (it's very easy), that would be wonderful. For more info see the README.txt file in the package.
If you have any questions, comments, or problems, please post on the support thread: