The plugin resized my thumbnails to 200x200 as I requested, however, when I went back to all my posts the images were not there only a blank placeholder. The file name and original dimensions were still there in the posts. I had to manually edit each attachment and change whatever size was there to 200x200.
I am hoping in the future that there is maybe a next step after the resize to go back and adjust the post dimensions of the attachment. Or maybe I missed something?