MyBB Community Forums

Everyone that joins my forum see things they like and dont even make a post .
I want this :

I need a plugin that will force new members post in introduction before they can see something .

Is there a plugin for this ?

I activated this plugin and now i registered to test the plugin.

I setted up a forum id to post only there but i cant post . I cant post no where .

Must Post ForumID
In what forum must a user post before viewing other forums.
21

What am I doing wrong ?