root access to a custom .sh defined as shell; need root privilages to add newuser

[ZZerver ZZserver]

Am running a free server of shells in freeBSD 4.9, the amount of
>people solicitading new accounts has been too much that i can not
>handle them by me, so i wrote this .sh program to do it for me, my
>code its secure as much i can tell, i understand the risk involve and
>decide to do it anyways, soo i create a new group call 'shellauto',
>add new user 'newuser' promote to 'wheel', then i modify etc/shells to
>accept my new shell, so when some body logs to my server as 'newuser'
>the server run my .sh (freeshell.sh), everything works goodl but my
>question is ...how can i give my script root previlages ? so can
>addusers without me? also if there is a way to type a command directly
>to shell (bash) so i can define quotas of 1mb, and background procees
>to 3?? that way i can include those commands to my freeshell.sh
>...thanks

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