Can you help with my Wordpress websites?

I have three Wordpress websites and I am struggling to get them operational. I know how to manage widgets, posts, pages, etc. My main problem is placing menus, ads, banners, links, etc. and how to identify parts of the main panel where I want to place them. One theme is Covert Store Builder. Another is Socrates. I have an active plugin, "IMPACT" which manages templates on static pages. I have not used it yet. I would like to first set up the looks and functionality of the Main pages before creating pages.
I just became a WPMU mamber