Currently Being ModeratedDec 12, 2012 7:54 AM (in response to S Scott James)
Well, if you are expecting an UNIX command for that, I don't know, but if you don't mind to set each-by-each, you won't even need ARD to do this:
1- Open Parental Controls (PC) in your computer;
2- On the left side list, connect to computers that you want to configure (Admin login needed);
3- Select the managed user, click on the gear button then select "Turn of Parental Controls for [username]".
You can also enable PC on users that aren't managed yet, and checking "Allow Remote Setup" is a good option.
Hope it helps