I have read this entire post and I don't see an aswer to the original question -- although the thread is long and I might have missed it.

In my "leave feedback" list, there is an auction for which I am not leaving feedback. In fact, the time has passed for me even to be able to do so. (Why is beyond the scope of this message.) Each time I call up the feedback list, this auction is there. I want to remove that auction from the list. How can I do that? The auction itself is marked "sold and shipped" but on the feedback form that comes up when you hit the "leave feedback button" to call up the fedback list, it says "feedback not left."