I managed to get a picture imported, only to find that it was done as a "post which was added when in fact I wanted it to be part of the blog. Maybe, once you hit 'publish' you can no longer add to the original?
I 'saved' this - instead of 'publishing' it and had a hard time opening it again. Finally I published it and was able to edit it easily, but nowhere did I see where I could add a pic.