I purposely did not mention anything about editing. As a writer myself, if I had to put something this big down thinking it was done and then a week later reread it and go "OMG, NO!" it would very nearly kill me to not be able to edit.
Though, as a warning, those set up to judge will be at liberty to read these at any time. If you edit, my request would be that you indicate that there has been editing. And not do it too much.
Good thing I enjoy reading, huh? As a matter of fact, I have already read quite a few of those already submitted.