G+ Integration and Search Bar

Show your Author picture in Google’s search result without touching any code, Iconic One Pro has a proper Google+ rel=”author” markup integration, all you have to do is fill out the Google+ URL in the profile field and it will activate. After that simply link back to your website from your Google+ page. The theme also supports multiple authors.

What i have to set and where images etc will appear?
only id or complete url with http or just id?

Wordpress is not fetching the profile photo from G+ , instead they are taking gravatar photo

and

adding this code

//wordpress search in menu bar
add_filter('wp_nav_menu_items','add_search_box', 10, 2);
function add_search_box($items, $args) {
 
        ob_start();
        get_search_form();
        $searchform = ob_get_contents();
        ob_end_clean();
 
        $items .= '<li>' . $searchform . '</li>';
 
    return $items;
}

in functions.php file will display search in menu bar.

In iconic free version, its display fine, but in pro version its not showing in one line, its displaying in search bar above and search button below.

Why this happens? could you suggest something for it.