Download orangesvcs-051.tgz to /tmp
[root@smoothwall tmp]# echo "bdaac91d8ef08ffacdd8ddc33d5a6341  orangesvcs-051.tgz" | md5sum -c -
orangesvcs-051.tgz: OK
[root@smoothwall tmp]# tar -zxvf ./orangesvcs-05.tgz -C /
var/smoothwall/mods/orangesvcs/
var/smoothwall/mods/orangesvcs/backup/
var/smoothwall/mods/orangesvcs/backup/dummy
var/smoothwall/mods/orangesvcs/backup/dnsmasq/
var/smoothwall/mods/orangesvcs/modfiles/
var/smoothwall/mods/orangesvcs/modfiles/dhcp.cgi
var/smoothwall/mods/orangesvcs/modfiles/restartdhcp
var/smoothwall/mods/orangesvcs/modfiles/dnsmasq.cgi.html.en
var/smoothwall/mods/orangesvcs/modfiles/dnsmasq.cgi
var/smoothwall/mods/orangesvcs/modfiles/setorangesvcs
var/smoothwall/mods/orangesvcs/params/
var/smoothwall/mods/orangesvcs/params/base.pl.1.s
var/smoothwall/mods/orangesvcs/params/base.pl.1.r
var/smoothwall/mods/orangesvcs/params/base.pl.90.d
var/smoothwall/mods/orangesvcs/params/base.pl.2.r
var/smoothwall/mods/orangesvcs/params/base.pl.91.d
var/smoothwall/mods/orangesvcs/params/base.pl.3.r
var/smoothwall/mods/orangesvcs/params/base.pl.92.d
var/smoothwall/mods/orangesvcs/params/alertboxes.en.pl.1.s
var/smoothwall/mods/orangesvcs/params/alertboxes.en.pl.1.r
var/smoothwall/mods/orangesvcs/params/base.pl.4.r
var/smoothwall/mods/orangesvcs/params/htaccess.1.r
var/smoothwall/mods/orangesvcs/params/htaccess.1.s
var/smoothwall/mods/orangesvcs/params/htaccess.90.d
var/smoothwall/mods/orangesvcs/params/header.pl.1.r
var/smoothwall/mods/orangesvcs/params/header.pl.1.s
var/smoothwall/mods/orangesvcs/params/header.pl.90.d
var/smoothwall/mods/orangesvcs/params/rc.netaddress.up.1.r
var/smoothwall/mods/orangesvcs/params/rc.netaddress.up.1.s
var/smoothwall/mods/orangesvcs/params/rc.firewall.up.1.s
var/smoothwall/mods/orangesvcs/params/rc.firewall.up.1.r
var/smoothwall/mods/orangesvcs/params/rc.firewall.up.90.d
var/smoothwall/mods/orangesvcs/params/rc.netaddress.up.90.d
var/smoothwall/mods/orangesvcs/params/alertboxes.en.pl.90.d
var/smoothwall/mods/orangesvcs/params/base.pl.93.d
var/smoothwall/mods/orangesvcs/install.pl
var/smoothwall/mods/orangesvcs/uninstall.pl
var/smoothwall/mods/orangesvcs/uninstall-02.pl
var/smoothwall/mods/orangesvcs/install-02.pl
var/smoothwall/mods/orangesvcs/install-04.pl
var/smoothwall/mods/orangesvcs/uninstall-04.pl
var/smoothwall/mods/orangesvcs/src/
var/smoothwall/mods/orangesvcs/src/restartdhcp.c
var/smoothwall/mods/orangesvcs/src/setorangesvcs.c
var/smoothwall/mods/orangesvcs/install-05.pl
var/smoothwall/mods/orangesvcs/uninstall-05.pl
./install.sh
[root@smoothwall tmp]# ./install.sh
Installing Orange Network Services mod v.0.5.1

Success!

[root@smoothwall root]# /etc/rc.d/rc.netaddress.down NOTGREEN;/etc/rc.d/rc.netaddress.up NOTGREEN