// install dir
// DB server
// Database name
// DB user
// DB password
// Apache group
// postgres dir
// postgres init script
// Web root

Save this stuff to config file
Run install.php
Create/adjust directories

Move config values to INI file

// Setup dir structure (can it be setup that way in the first place?)
// Check that the exe's exist
// check apache group exists
// install pg_hba.conf
// create database
//