I want to new user or Newbie can post new topic freedow
You should use Roles, not ranks. Log in as admin. go to "
Admin->Users and Roles->Roles". Now look for role(s) which has a "
True" value for "
Is Start".

Click "
Edit". Scroll to the bottom of the page ("
Access" section). Change the "
Access Mask" value to "
Member Access" for the desired forums.

By default, members with "
Member Access" can post new topics. You can check it in "
Admin->Users and Roles->Access Masks" and see if "
Post" is set to True for the "
Member Access" Access Mask. there, you can define access levels for any Role.

and I don't need censor Their topic !
Moderating new posts is not based on user roles, It's based on forums. to change moderation: go to "
Admin->Settings->Forums". Click "
Edit" for the desired forum. if "
Pre-moderated" is checked, clear it. click on save and that forum will not be moderated anymore.
If at first you don’t succeed, call it version 1.0