Displaying text / content for logged in users only

how can i add links at the top to specific pages only if a user is loged in?

at the top where it shows

- Statistics - Search - Preferences - Logout - Members list

i would like to add some links for when a user is loged in

In bb_plugins.php you need to write a condition, for example:

if($user_id!=0){
//if $user_id is not equal to 0 it means he's logged in
$menuLink1='Link1';
$menuLink2='Link2';
}

then paste {$menuLink1} {$menuLink2} in main_header.html for example.