usergroup based on custom profile field

[wtrk]

i accidently deleted a usergroup that i had setup to put users into automatically based on their answer to a profile field question. but i cant remember how i did it. i know i did it based on something i read here, but i cant find it now. can anybody point me to the thread im looking for? i need to find the old template mod and replace the old usergroup number with the new one hahah im dumbass sometimes!