As Brad mentioned earlier, the CPT UI plugin doesn't handle the display of your custom post types or taxonomies, you need to query and output the content yourself via your theme.
I looked over Justin Tadlock's tutorial and it is current information. It assumes you don't have a static front page set via the setting > reading section, but are in fact showing your blog posts. What the tutorial will do is make WordPress query for the extra post types listed in it, and add it to the posts to loop/display on your frontpage.
That said, we need to figure out where you want to display your custom post type data, and the best way to do that. So we'll start there.
What is the post type you registered?
Do you want to show it somewhere as standalone content, or do you want to have it mixed into other loops of posts?
What is your intent with the custom post type?