You can manage your database online at http://mysql.hosting-advantage.com/

Login using your database username and password.
The users manual for phpMyAdmin can be found here: http://www.phpmyadmin.net/documentation/

You can also access phpMyAdmin from your control panel. To access phpMyAdmin, do the following:

1. Select MySQL DBs in the Databases menu.
2. In the form that appears, click the name of the existing MySQL Database you want to edit or the Edit icon on its right:

   

3. In the form that appears, click Built in phpMyAdmin control panel to start editing your database:

   

4. Follow the instructions of the phpMyAdmin control panel to edit your MySQL DB.