There isn't a specific alert for those responses BUT if you select "my profile" it gives the list of those threads you are subscribed to when a new post has been made to it. that selection shows up on the line that has next "FAQ/help", "Members List", "calendar", "New Posts", "Search", "Quick Links", "DailyMood", "logOut"

When you check a selected thread it will knock it off the display list of threads until another new reply has been made to that thread.