Hi
i think u must enable subscribtion for the members that took part in this forum..

i m sorry i m bad in english but i want to say that when i post a reply, then i dont remember in which section i posted replies, when i click on usercp, then new replies list must be listed there.
if i start a topic or replied to any thread, then if someone post new reply , a link must be placed in usercp option.

If you go into your control panel and click Edit options.
scroll down to where it says "Default Thread Subscription Mode".
Select "no email notification" from the dropdown box.
Then click "save changes"

This will now list replies to threads you have posted in in your control panel.

now i get it
thanks