I wnat to create some kind of anonymous forum
 

I want a forum where my registerd members van post anonymous. So nothing of any user stats are diplayed. Just anonymous. Is this possible?

Easy: make a forum where guests can post.

No, I don't want guest to be able to post. Only my registered members.

Change the postbit template so that the real info isn't used and instead make it always say anonymous?

But I only want it to work on 1 specific subforum. I don't want it to work on all my subforums. Is this possible too?

create a new style, do what WetWired said and use the style just in this forum..

And I have to make a new template set for that new style. And could you please give a little bit more info on editing the templates?

yes you have to create a new templateset for it

then edit postbit template and delete or replace all userrelevant infos like $post[username] $post[usertitle] and so on...

Ok, thanks, I'll try that.

O and is it possible to make it so that only admins can see who is the posters and all the other members not.