So i want to put an image up of the menu like an advertisment can you help me? I want to do it without changing the classic menu mode ...
Out of the box, you can add it below the header (where your contact info is) by adding it to the Classic header widget area:
If you want to add it above the menu, this will require customization of the template files. Either the header template or the top-bar template. This can be done within a child theme.