Not a bad script for your first try :D

You could extend it further by adding more controls to it like just set founder, admin, op, halfop, voice ect without having to add them to the access list.

Also keeping them in order is good to not to confuse the non irc pros(n00bs) like you have aop befor sop where sop is higher.

Ohh and (N) ? should be &

all in all ill rate 6/10 as its neat and works like it should and that this is not bad for your first attempt.

Thanks
Gemster