This is a site im developing that can work as a store.
The site is basic, it allows you to make a store like site, you can add items, you can log in, you can "buy" stuff.
The needed database along with some sample data is included in the file mysql.sql and can be imported to MySQL.
You need to modify IConnectInfo.php to work with your MySQL database, as the login info and url is incorrect not specified by default.