Right down below your post, it says delete post and replies. Click on that.
at 4:38 PM on Oct. 7, 2009
If it is a reply to someone else's post, just go to the question (or Go to the Answers tab above. Click on My Answers) and find your reply and delete it where it says Delete Answer. If it is a question you posted, Go to Answers tab and click on My questions and delete your question.