I didn't get precise instructions on the nc site on how to install the personal navigation bar and staff onlihe feature bar above (visible only for registered users).
During installation I was prompted to install two additional files that were not mentioned in the instructions.
So first, go to http://www.cvs.nukecops.com you download navtap.php along with an other file called, I think, topics.php, both in the root directory.
As for the Staff line, you should first have downloaded the corresponding mod from the www.portedmods.com. See that the version corresp. to your site version.