When i have installed a plug-in and activated it but when i go to Config to change the settings (i.e. Board Message plugin) it doesn't show up
What do i do?
What exactly doesn't show up? If the Board Messages page in Configuration menu, you need to set the permissions correctly.
http://docs.mybb.com/Admin_CP_Admin_Perms.html Most plugins should be under Configuration, turn them on for you/your group.
Or another solution for all plugins - make yourself super administrator. Open inc/config.php and change value of
$config['super_admins'] = 'x,y,z';
where the letters are uids of the people you want to make super admins. Comma separated.