Rolin,
In a message you've posted, click your name. You'll see the last 10 message you've posted. If you click the Messages button on that page you can see all the messages you've posted.
>I posted a question (regarding the username and password location on replication) about a month or two ago, and I then posted a reply to my own question, as I had found the answer and wanted to communicate that. I would now like to access that post, but it is not in my reply list (presumably because I replied to my own message). How do I get access to that??