Setting parental controls for network user accounts in NIS 2009

I want to establish a default set of parental control restrictions for anyone who logs on to our network

on a given machine.  When I go into Configure, it only shows Administrator and ASP.NET Machine accounts

as the user accounts on the machine.  I set the restrictions for these two, but any network user who

logs in is apparently granted an unrestricted profile.

 

Any suggestions?

 

Thanks!