Steve, how do you edit one of your own posts? There is an Edit tab, which seems to allow you to change a post, and a Save button, which implies that the changes will be saved, but in fact the changes do not seem to stick.
Hmm - did this break again? If you want to edit the first post in a thread, you should see a "Edit Disucssion" button above the post. For replies, you should see an Edit link displayed at the bottom right of the post.
