Go into the forum you want to lock and than you'll see Admins Tool on the right side of the forum
How to lock a forum topic?

Sorry Susanti, couldn't find it. If someone that knows how do this showme a screenshot of this method, i would be glad.

I think you can only lock a forum if you are admin the group that the forum is in. if the forum is not in a group, you'll have to ask a staff member to do it for you

I think you can only lock a forum if you are admin the group that the forum is in. if the forum is not in a group, you'll have to ask a staff member to do it for you
Exactly! I want to lock/delete if possible the PUBLIC forums that i've postyed, as 'How i can see my sent messages'. In a group i know how do that, as Susanti mentioned in post #2.
In some forums i think the discussion already ended and isn't needed keep posting comments there. What i would do?