If you click on the blog name on this page,
rather than the little plus sign, you'll be taken to the blog post area:
Where all your older entries will be listed. If you see a showing up here, but it says Draft instead of "View" with a link on the right side, you'll need to click that Edit button and publish it so it'll show up on your blog.
From the edit post screen, you can also add to or delete text before publishing, and again, hit PUBLISH POST not "Save to Draft."
Finally, you'll also want to put a photo on your profile.