Shorewall users - Nov 2003 - pptpd start on reboot

Hello,
    Having trouble getting poptop to start as service on boot
I used the init script on Toms site below
This is a snip from chkconfig --list
shorewall       0:off   1:off   2:on    3:on    4:on    5:on    6:off
openvpn         0:off   1:off   2:off   3:on    4:on    5:on    6:off
pptpd           0:off   1:off   2:off   3:off   4:off   5:on    6:off
I use webmin "bootup and shutdown" to start and stop services at
boottime
When I try to bullet to start pptpd at boot then click save in webmin, it
does not save.
I also tryed:
[root@ns2 root]# chkconfig service_pptpd on
error reading information on service service_pptpd: No such file or
directory
[root@ns2 root]#
    What am I doing wrong is it because the script sets to run level 5 only?

Thanks,
Mike
ps spoiled with with webmin
#!/bin/sh
#
# /etc/rc.d/init.d/pptpd
#
# chkconfig: 5 12 85
# description: control pptp server
#

case "$1" in
start)
    echo 1 > /proc/sys/net/ipv4/ip_forward
    modprobe ppp_async
    modprobe ppp_generic
    modprobe ppp_mppe
    modprobe slhc
    if /usr/local/sbin/pptpd; then
        touch /var/lock/subsys/pptpd
    fi
    ;;
stop)
    killall pptpd
    rm -f /var/lock/subsys/pptpd
    ;;
restart)
    killall pptpd
    if /usr/local/sbin/pptpd; then
        touch /var/lock/subsys/pptpd
    fi
    ;;
status)
    ifconfig
    ;;
*)
    echo "Usage: $0 {start|stop|restart|status}"
    ;;
esac

What am I doing wrong is it because the script sets to run level 5
only?
    Sorry, answer my own post, I added run level three and four to
Tom''s
script and it works!

Mike