Please PM a moderator directly with questions in the future. It's much more likely it'll get seen. In the forum, there's just a good chance you'll get buried.

To send a PM, visit the profile of the person you want to message and click "Send Message" under their avatar.

http://www.planetminecraft.com/team

Also, you can delete your own submissions. When you edit a submission, there's a button for it near the top of the page, iirc.