Super easy Jo Ann!
For the future, the way I do it, find the correct entry, copy the Plant ID#, in this case for Oriental Poppy (Papaver orientale 'Watermelon')
it's 148997. You can find it in the left side or at the very end of the URL address at the top.
Then go to the incorrect image, enlarge it and scroll down and click on the "Move this image to another plant" and enter that # and submit.