Ok it didn't work, and it took me a while to figure out that my whole navgroup didn't work because it doesn't like numbers in the file name (not very useful).
I tried
Code:
$vbulletin->options[foo]
and nothing happens, it just shows all the time.
Also
(my links) don't show either, I just get the code instead of the link.
I guess I'll be digging out the admin permissions thing instead and trying setting them that way, although it won't be the best way of doing it by a long way.