Thread:Project:Support desk/Auto Installer and server files

OK so I'm new, but I have used the service of a web hosting system as it has an 'Auto Installer' for the MediaWiki software. It has installed for me the software on my wiki http://wggc.hostingsiteforfree.com. I don't know how to access the remote web server and get to the server files such as LocalSettings.php. Does anyone know how? I am using: MediaWiki 1.18.1 (I'll upgrade later), PHP 5.3.24 (apache2handler) and MySQL 5.1.61. Thank you!