Apache must be installed and the httpd server running.

On a debian for example, the install process goes like this :

tar xvzf <archive.tar.gz>

Move everything to the directory of the server in which you will (cd /var/www)

Assign rights :

chown -R www-data.www.data * ; 
chmod -R 0640 * ; 
find -type d -exec chmod 0777 \;

[Ed note. As from here, you can use the quick configuration of the database, described earlier in this guide : Configuring the PMB database]

Create the database

mysql

create database <thedatabase> ;

Create a dedicated user (highly recommended and adapted to your case)

GRANT ALL ON PMB.* TO 'admin'@'localhost' IDENTIFIED BY 'password';
flush privileges ;

And you start the install process as indicated in the documentation.