By default your index page, which is the page that you'd get when you type in a domain, is the page where your main post body is located. Thus, when you visit a blog, you'd see posts in your index page. Whereas in a website, usually an index page is an introductory page, and you'd be able to click a tab from the menu to bring you to the blog/posts page. This is what we are trying to achieve in this tutorial.
In this tutorial, you'd be able to have a homepage, with no posts on it, and you can click on a tab to bring your reader to your posts. On the downside, this method is not so straight forward, and it involves some hardcoding. Something not so suitable for beginners, but feel free to try it out.
I'd suggest you to use firefox while trying this. with FireBug add on installed.