DB will not load

My wife has been trying to load everything in the word press, but it will not load up. I tried to do it for her by using her web name in the http: sign to create a admin user:www.mysouthernrootsareshowing.com/wp-admin/install.php when we push enter we get :

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 mysql.mysouthernrootsareshowing.com. 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.

She said that she followed everything right, but please tell us what is wrong so she can start her blog. Thanks..