Submitting more than one file

I've already submitted an entry. But is it possible to remove it and replace it with another?

I know it's tough and the lines are kind of blurred w/ music and entertainment categories but the rules section addresses this as 1 category- 1 submission per contestant. (copied and pasted from the rules section)

3.1. TO BE AN ENTRANT:

To enter the Contest you must first register and become an Entrant, a Voter, or both
(together, “Participants”). Registration is free at www.publicradioquest.com (the "Contest
Site"). As part of the registration process, Participants will be required to accept and
agree to be bound by these Official Rules and the Terms of Use of the site, and accept the
decisions of the Judges and the Sponsor as final. Limit one (1) registration per person.
Anyone who attempts to register, or in the sole discretion of Sponsor is suspected of
registering, more than once, by any means, including but not limited to establishing
multiple e-mail accounts or Screen Names will be disqualified.

"Happiness is the best revenge!"

I can't find the answer to this either. Would really like clarification.

~
Mur Lafferty
www.murlafferty.com