Moved directory plugin to theme folder using filezilla, tried to upload it to themes, still no direc

I have no directory theme or categories showing up. You instructed me to move the Directory plugin to the theme folder. I did via filezilla. Did not do anything. Then I moved it to the default folder. Did not do anything. I tried to install "Directory" to my themes. WP said it did not have the styles.css folder. ???
Thank you for the prompt response previously.