I have a bunch of links up at the nav bar on the top of the page and i was wondering how i can make it so that people who are just regular members or in certain member groups can't view that link?
i'm not sure if you can do it for certain groups, but you can hide links from non members using this: if($context['user']['is_logged']) as a part of your menu links.
if(in_array($user_info['group'],array(1,2,3,4)))
show the button
Make sure that the $user_info global is declared in index.template.php.