After login as administrator, you can change the 'site title' as 'Admin > Settings > General > Primary...' progress.
After login as administrator, you can change the 'menu structure' as 'Admin > Menu > Menu Management...' progress.
After login as administrator, you can change the 'layout design' as 'Admin > Extensions > Instance of layout...' progress.
After login as administrator, you can install the 'module' as 'Admin > Extensions > Easy install...' progress.
After login as administrator, you can change the 'main page' as 'Admin > Settings > General > Primary...' progress.
After login as administrator, you can edit the 'main page' by click the 'Modify...' button.