Themes here at WP.com may look a little different because the theme Staff hack at the themes
From reading the original post by remarkest, this sounds like it's not a problem WordPress.org versus WordPress.com but why a standard, out-of-the-box blog using Inuit Types doesn't look like the default theme screenshot.
That is simply because the screenshot shows a site that has a wealth of content, and has set up the Inuit Types theme options to use features specific to that theme, like pulling Featured Images from posts that are in a certain category.
@remarkest -- It looks to me like you're just a few steps away.
1. Add some content to your site. Write some posts, add pages, upload images. Your site will start to look "filled out."
2. Read this post: http://en.blog.wordpress.com/2010/04/15/new-theme-inuit-types/ -- it details the features in Inuit Types and where to find them in your Dashboard (administrative panel).
3. Ask questions.
Once you get some content you'll be most of the way there. Feel free to post here again and folks who also use Inuit Types can give you some more tips.
@timethief: If you and sacredpath could post a few links to topics here on the Themes forum relating to Inuit Types, that'd probably be a big help to @remarkest. :)