go to World Properties look for this
# Advance Configuration
net.sf.odinms.login.flag = 3
net.sf.odinms.world.flags = 3
net.sf.odinms.world.admin = false
net.sf.odinms.login.userlimit = 10
net.sf.odinms.login.maxCharacters = 3
you see where it says [net.sf.odinms.world.admin = false] change...