[horde] what to do with horde_setup_upgrade.php?

[Soren Orel]

I'm a newbie to php, horde, and I just want to ask that I install horde,
etc, and I don't want to give permissions like:
chmod 777 /etc/horde/horde3/conf.php
touch /etc/horde/horde3/conf.bak.php
chmod 777 /etc/horde/horde3/conf.bak.php

so I clicked on the:
"Save generated configuration as a PHP script to your server's temporary
directory."
and it gived me:
"Saved setup upgrade script to: "/tmp/horde_setup_upgrade.php"."
Ok, I can see the file, but how could I get horde to use it, to get the
config right?
thank you :S