To create a new comment, click the '+' tab, next to the 'edit' tab above. Then in the 'Subject/headline' box, please put four tildes thus: ~~~~ (this will fill in your username and the date/time), together with any other title you want. Now please click in the large box and enter your comment. You save your comment by clicking on the "Save page" button at the bottom of the page. A simple guide to editing can be found here.