There is a few ways of telling, but I find subscribing to a thread the easiest and quickest way of knowing if someone has replied to a thread I have posted in,
When replying to a thread, click on "Go Advanced"
Type your reply,
Underneath your reply will be a section called "Additional Options"
Where it says Subscription tick the "Subscribe to this thead and notify me of changes" I always select "Instantly using Email"
This will send you an email, even if not logged into the forum, when someone has replied to the thread you have posted in.
If you need some screen shots on how to subscribe, let me know and I will post it up for you.
Cheers
Todd
Time is never wasted when your wasted all the time 
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