mysql hosting to freesql.org

i upload wp on t35.com then i see setup config file in database host i write http://freesql.org, in password-password, in user name i write user name, in database i write databse then i Submin. Then i see eror-

Warning: Cannot modify header information – headers already sent by (output started at /home/freehost/t35.com/p/a/my user name/wp-admin/setup-config.php:22) in /home/freehost/t35.com/p/a/my user name/wp-includes/wp-db.php on line 304

Error establishing a database connection

This either means that the username and password information in your wp-config.php file is incorrect or we can’t contact the database server at http://freesql.org. This could mean your host’s database server is down.

* Are you sure you have the correct username and password?
* Are you sure that you have typed the correct hostname?
* Are you sure that the database server is running?

If you’re unsure what these terms mean you should probably contact your host. If you still need help you can always visit the WordPress Support Forums.

what i need to do?