Hello, if you need to install the MySQL-JDBC to work with a database, but can not find WebRatio7 "org.postgresql.Driver", you can download and follow these post:
You can download here:
Rename this file by this name "mysql-connector-java.jar", and place it in the folder "WebRatio/drivers".
It's true. You can find more details in this post.
Enter and download the .jar in http://dev.mysql.com/downloads/connector/j/#downloads