Hi,

- My forum is integrated into my website, and therefore I want to display extra links when users are logged in, but what is the code to determine if users are logged in?

- And I want to automatically check the notification checkbox, but in the template it's defined as one variable, in which php file is the code of the checkbox?

The code/condition you may put in bb_plugins is if($user_id>0) { ... }

Here is How to find where to edit this and that ;-)