OT: PostNuke registration

[yahoogroups@xxxxxxx]

Folks,

I'm hoping someone will know the answer to this one in a flash :-)

Is there any way (or a module or something) that new users have to
be "accepted" as it were by the administrator, before they have
access to the
site?

I know you can do it in xoops, but I cant find anything in PN

thanks muchly

p.