At the bottom of the page (underneath the text input box) should be the following area. Click manage attachments and then upload your picture. After you click upload, it'll look like it's not doing anything. Wait a few seconds and your picture will show up. When replying to a thread, you may have to click "advanced" underneath the text input box.
He who drinks beer sleeps well. He who sleeps well cannot sin. He who does not sin goes to heaven.
Another HERMS rig...