Hello,
I'm not too farmiliar with MYSQLFront, but I'll assume that it's a program that connects to your database from an external computer (ie your local machine). To enable this, you have to add an access host to your database so that mysql will aknowledge that machine as being allowed to connect to that database.
To do this, go to: User Panel, MySQL Menu, click the database name, type in the IP of you local computer in the field in the bottom table and click "Add Host". (You must also make sure that your server has port 3306 open externally, but only worry about that if you can't connect)
John