http://www.montecarloss.com/ubb/ultimatebb.php?ubb=get_topic;f=6;t=000823

This is the thread I believe you are talking about. The default setting of the board only shows threads that have been active in the past 5 (or 10) days. You can change this my clicking on "my profile" at the top right of the page and then clicking "view/edit profile" and setting the default as you wish.

You can also respond to your own thread with a "ttt" to bring your post back to the top of the list and make it active again.

For future reference, to find your recent posts - click under your name where is says "Posts: #" and it will show your last 50 posts. You can also access this from your profile.

HTH