Also, make sure to have all of the fields filled out (title, email, etc). I emailed the moderator and we conversed over email about this a couple times before I realized my mistake. Oops.
Okay, so you have to have all the fields filled out? He should specify that they're required and notify you when your submission didn't go through instead of just blanking out the fields. Very poor design. Thanks, mc, and congrats on UVa.