When submitting a story to a Drupal site, there are a few steps which make the process easier.
First, click on "Input format" and select Full HTML.
All posts need to have an image, which can be inserted with the camera icon, located in the center of the menu bar.
The next screen will prompt you to upload a picture and lead to a screen asking for a title and tags. The title is necessary to upload the picture. While the tags are optional, they are important as they can be used for key words in search engines.