ok i have natd problems. i have read handbook and did as it said and its not working... amm i dont have a clue what went wrong so if somebady can help me

i have write in rc.conf this:
#natd_flags="-use_sockets -same_ports"# -- sysinstall generated deltas -- # Sat
Aug 13 18:36:40 2005
natd_flags="-f /etc/natd.conf"

in natd.conf this:
use_sockets yes
same_ports yes
interface tun0
#-redirect_port tcp 6901 # msn
#-redirect_port tcp 4662 # emule
#-redirect_port tcp 4675 # emule
-redirect_port tcp 23987 # aoe

i restart my net ( killall ppp, killall devd, killall natd then ./netstart) but when i seek for natd deamon with ps aux | grep natd i dont find it. so i asume its not working. i dont know why... did i forgot somethink in rc.conf???