Hey Felicia,
Glad you like the plugin. I'm not sure if I'll be able to help in this scenario. Automatic Featured Image Posts is intended to create new posts from image uploads. Once those posts are created (automatically), the image is assigned as the featured image. The intended workflow will always start with an image.
There are some filters available that may help you control some stuff - http://jeremyfelt.com/wordpress/2012/04/14/filters-in-automatic-featured-image-posts/ - and I will probably add in an action or two in the next version that will allow you to ignore the plugin for certain image uploads.
Hope that gets you on the right path.