First time with qmail

[Ing. Carlos Alberto D�vila Cant�]

Hi, I recently install qmail in a SuSE 7.0 Linux. I follow the instructions
of the document My life with qmail, but when I make the scripts for start,
stop and restart for init.d, I can't execute this script in root user, I
change the mode to 755 and I can´t execute this file. How can I do for
execute this script:

#!/bin/sh

PATH=/var/qmail/bin:/usr/local/bin:/usr/bin:/bin
export PATH

case "$1" in
  start)
    echo -n "Starting qmail: svscan"
    cd /var/qmail/supervise
    env - PATH="$PATH" svscan &
    echo $! > /var/run/svscan.pid
    echo "."
    ;;
  stop)
    echo -n "Stopping qmail: svscan"
    kill `cat /var/run/svscan.pid`
    echo -n " qmail"
    svc -dx /var/qmail/supervise/*
    echo -n " logging"
    svc -dx /var/qmail/supervise/*/log
    echo "."
    ;;

esac

exit 0

Thank's, Carlos

P.D. I really want change the sendmail for qmail...