Well the way is should look in the GetAccess,cfg is [(User)] Access=(Access level such as admin, tester, etc.) Password=(password for them) Critters= ( Leave this blank, the server will fill it in.)
I killed them in the past, but not after I cleared my karma, besides killing the guards at the Junktown quarry a few times isn't enough to get your rep to -2327 with them.
Yesterday I cleared my karma, Cubik was there when I did it because we killed the guards in hub. I entered Junktown and got murdered today, I didn't do anything that junktown would have vilified me for since then.