Brad...how about a post that is so hard to miss it cant be missed? Like if a person enters a photo they get directed to the post?
I'd recommend something basic, that goes over things like how important the background is. For example in the most recent pictures added there are things like power cords, plastic containers, lizard is out of focus, or the background is not only out of focus but over 70% of the photos which detracts from the photo. I know you already have the basic rules up which people don't read, so come up with some code that directs them to it before they enter. That alone could help you streamline the thing like you're asking here.
At this point you might as just well give Ponders the gold and call it a month. You wanted to save time, there it is. As for me I wont be bothering with the contest until some things change. Seems more like a popularity contest.