Go to User Cp, click on Options, and scroll down about halfway to where it says "User Thread Default Modes". You can select what kind of notification (if any) you get to subscribed threads. If won't notify you if it's updated, but will if someone replies to it. To subscribe to a thread, either reply to it or click on the "subscribe to this thread" option.
Amanda ~ Devoted Mom to: Meredith (16), JJ (14), and Noah (7)