I have been burning the midnight oil tonight trying to figure out how to add TABS under my blogger HEADER. I tried this and that only to realize it didn't work. I finally "googled" my question and got my answer (geez, why didn't I think of asking google about six hours earlier?).
Here is a link that gives straightforward instructions on how to add stand-alone PAGES to Blogger. When a page is created, an option is available for posting the page to the sidebar or to the top. Whew, now that was simple!
Here is the link to instructions: