Exactly like here MOD forum and Forums I want
 

How can I achieve this here you have mods and forums
are they two different forums or same forum made it this way?

Set the display order to "0" for that forum, then use a direct link to the forumdisplay.php?f=X page. X being the ForumID of the Forum you've just hidden.

thank you obserty

I want to use it for multi language Is there any way I can change the headers
I mean the "usercp" "help" bla bla menu up there for new forums

I heard some thing about IF cause of some thing

You will need to add translations via the Phrase Manager. Your users will then be able to select which language they would like to use.

thanks what I mean I want to change the User CP Help Chat Members List New Posts Quick Links Log Out menue to some thing else when some body clicks on new forum

You will need to add a conditional to the navbar, such as:

thanks a lot I will give it a try and let you know