Also, not meaning to step on Cyrus' toes, since this is more or less his baby (with a grateful nod to Frank P for his offer) but:

It's my understanding that everyone who wants to submit should submit only 1 image; there is no editorial board, so it is up to the photographer to select what he/she feels is their best image. Or favorite image. whatever.

And as Cyrus stated earlier, make sure you tag your image with your name and image name. If you don't know how to tag (like me) just name the image "yournameyourimagename"