Hi mate. No that’s one theme, but you need to do some customising. If you have a look at the files in a theme folder there are quite a few. One called home.php will always point to the homepage of your blog. If your homepage is not a blog, but a front-page with the title of “home” then a file called page-home.php would customise that. You could target every other generic page with a file called page.php, or, if it is a blog then index.php is the default file that would target every other page/post.
Might sound confusing but if you create a number of copies of your theme PHP file with different names such as those above you can alter each one and it will change the look of different pages/posts. style.css contains the stylesheet info you also need to modify. Check out the codex for more info or a great ebook called “digging into wordpress”.