If you'd like tabs and extra pages for your Blogger Blog like I have on the top of mine, sign into your blog, go to the top right and Pick Customize, then go to the Dashboard. Go to the Layout tab and look for where you can add a Gadget. On mine, the choice is in the middle after the title, or on the left sidebar. By choosing the middle one, you can get tabs that go across the page. How many depends on your template, but the most you can add are ten. By picking the sidebar, you'll get a list effect.
After that, go back to the Dashboard. If you have more than one blog, pick the one you want to work on. When the list of posts comes up, instead of clicking on one of those, look on the top left for Edit Post (that's where mine is. Yours might be somewhere else)
After you click that, you should get a choice to add a page. When that comes up, fill it out the same same way you would a regular post and click Publish, or Draft if you don't want it up right away.
Ten pages are possible if your blog template is wide enough. Otherwise, you'll probably get less. Also, if your page names are long, you may end up with more than one row. I shortened my titles when that happened to me.
After it's done, you can decide whether or not you like the way it looks. If you don't like the new look, you can always delete and go back to how your blog looked before. I like the idea of having the tabs where everyone can see them right away and be enticed to check out the contents, although I do think my blog has a busier look now. I guess I'll have to accept that for the greater good.
Are you going to add extra pages? If so, let us know how it worked for you.