I have been asked how I added the navigation bar in my blogs. The answer to this is google for it and do not be afraid to do some code hacking of your layout. Before you start though download the present template so that you can revert back if you make a mistake. Select customize and then go to Layout and choose edit html. Check the expand widget. Download the template before you begin and note where it is stored in case you need to revert back .
Then for adding the navigation bar itself see this link http://tips-for-new-bloggers.blogspot.com/2007/08/horizontal-menu-navigation-bar.html - scroll down to where it says Text Link Menu Navigation Bars and follow instructions
and as for the links themselves you have to create static pages and backdate your posts.
The link to that is http://technicallyeasy.net/2008/07/creating-static-pages-in-blogger-part-2/
read and hack on.
