For future refererence, if you find a thread that you have not posted to, but are interested in following, if you click on "Thread Tools" and then "Subscribe to this Thread", then whenever you click on the "Subscribed Threads" menu, it will list this one (as well as all others you participated in). And if you have your Profile set to send you emails anytime a reply is made to a Subscribed Thread, you will get email notification whenever there is a reply.