Just because you get an error message from flickr saying it can’t upload a picture to your blog doesn’t mean it’s true. Check your blog first to see if it really happened before retrying, getting the same error message and retrying again and then finding out you have a boatload of photos in your blog all with the same look and comment. Just a different time-stamp. (unless you were really fast on the retry button.)
Do you know how tedious it is to delete a post in this blog?