My old wordpress blog redirects to a hosted wordpress.org blog. I always accessed the new blog through wordpress by clicking on my blogs (I have a few) and going to the dashboard. But my hosted blog is no longer on the list. I have no idea how to access it.
Self-hosted blogs are in no way connected to wordpress.com. If you have been using the blog stats plugin or Akismet on your self-hosted blog, they would appear in your account here simply because they were linked here for the API key necessary for the blog stats and Akismet plugins.
The best way to access your blog is from the URL to the admin page at your blog something like the below: