PHP-Nuke has a complete installation guide
I will give you a quick rundown:
First go to and download a “Web Installer” for your version of PHP-Nuke
You need to ftp the two directories “html” and “sql” to your web root
Then you need to set file permission for these two directories to chmod 755 and their files to chmod 644
You will also need to upload the “Web Installer” files to the root also.
Next you will need to create your mysql database through your web hosting control panel,
remember the name of this empty database.
Now point your browser to w ww.yoursite.com/nukesql.php
Once you successfully complete this setup it will complete you config.php.
You should now be able to see your php-nuke page at w ww.yoursite.com
To administer you site go to w ww.yoursite.com/admin.php
