[xwiki-users] Customizing xwiki to blog application/any website with these common features ?

Hi All, I had a look on projects powered with xwiki. Really i am completely amazed!!!. Just to start with,I am planning to use the xwiki site to use it as my blog page.i have created the DivBlog space and gave Unregistered Users the view rights on DivBlog.Everything looks great here. But i want to hide icons like WIKI,Space and Page name (all on top left corner of global menu bar), LOGIN(on top right corner) for unregistered users. Similary iwant to hide the Export and More Action options for unregistered users(on menu bar of page). On top of it, i want to introduce 3 tabs(or links) on top of page (exactly in the palce of global menu bar showing space name and page name). Can i do such configuration in xwiki?How should i go about it.? Just a suggestion if there is document which can state these kind of customization , i am sure it will help the masses. Like Tabs mentioned at http://www.xwiki.org/xwiki/bin/view/References/ALPHABib Like Home,Repository,Blog,WikiLinks are mentioned at https://ec.europa.eu/employment_social/anticipedia/xwiki/bin/view/Main/