@Stian: Check your settings. Go to “Appearance => Customize => Theme Options => Layout Options” and make sure you have unchecked “Check to hide meta information on archive pages”.
If you want different page to be your blog. Then first you need to create page from “Pages => Add New” and then assign that page that blog page to “Posts page” from “Appearance => Customize => Static Front Page” and then check in “A static page” and then select that page in “Posts page”.
To add items as per your need in menu, you need to create custom menu from “Appearance => Menus” and add menu location from “Appearance => Menus => Manage Locations”. For more about custom menu, check out http://catchthemes.com/blog/videos-blog/video-series-creating-wordpress-custom-menus/