I submitted a post last night in the suspension forum but it doesn't show up in the new posts listing. I was wondering why I had no responses, what gives?
You can't see it in new posts because you've already viewed it.
If someone posted in it and you went to new posts you'd then see it until you view it again and then it'll be marked as read again and you wont see it under new posts.
Just to add to what Mounce said, the easiest way to see posts that you have already viewed is to click on "Recent Content" In the main header. That will bring up every thread even if you have already viewed the thread.