<p>If I want to change or delete a post, is it possible? And if so, how do I do that?</p>
<p>You can only edit or delete for awhile (maybe 30 minutes or less?). After that you can contact the administrator if there's a good reason for you wanting to do that. I seem to remember reading that's how it works.</p>
<p>If the post was recent you should see a place on the bottom for Edit This Post.</p>