Re: Can someone tell me the if tags for not logged in users please?
You’ve got the right idea but your syntax is wrong. Presumably you don’t want the button (ie the li list item) to show up at all for logged-in users. So you need to put the entire button inside of an if statement:
<?php if ( !is_user_logged_in() ) { ?><li><a href="register">Register</a></li><?php } ?>
Also, be patient! 9.5 hours to wait for help isn’t all that much time! 
