Ok, I think I figured it out. When I went to your user admin, it said "user details changed, inactive" - so I wonder if you might have changed your email address or something for your account? This might have prompted you to click on a confirmation email that you haven't done. I'm just guessing here! But for some reason your account was set in-active so that would have limited your permissions. Anyway, I've activated your account again and I think you might be good for posting to the for sale forum.