Well...when you install it, it would show you in help menu (or toolbar) you can get there the "HOW TO", as I heard about this version, it's from http://xxmi.com why don't you go back there and check it out, or you can go to http://www.phpnuke.org/modules.php?name=PHP-Nuke_HOWTO but I am not sure it's same thing as that program because I cann't read that language...by the way, before you do any further action, did you request to upgrade and enabling php on your site yet? if not, please do so !!!
Good luck