You can choose whether to show the menu entry for the home page, in order to make the way to go back to the home page clearer. It will always be possible to go back to the home page by clicking on the site title on the left. [Home page options > Options and image]
The background image for the header is the same for every page. It can be both a jpeg (.jpg) image and a flash animation (swf) [Home page options > Options and image]
Under the home page you can add as many blocks as you want combining them and choosing their width and image.