Congratulations on being made an admin, and thanks for trying out my popups script! I thought you might like to know that if you can get links to many admin features in the appearing in the popups. Just add a new line to User:Lupin/popups-admin-upgrade/monobook.js, so the the popups part ends up looks something like this:
// [[User:Lupin/popups.js]] - please include this line
document.write('<script type="text/javascript" src="'
+ 'http://en.wikipedia.org/w/index.php?title=User:Lupin/popups.js'
+ '&action=raw&ctype=text/javascript&dontcountme=s"></script>');
popupAdminLinks=true;
Give it a try and let me know if you find any glitches or have suggestions for improvements!