Really just notes for me, but it might help someone out.

To setup php 5.0.3 with apache 2.0.25 as an apache module
Apache is allready installed
Get the .zip version has everything you need
http://ca.php.net/get/php-5.0.3-Win32.zip/from/a/mirror

This goes in the httpd.conf
#
#PHP setup
#
LoadModule php5_module "c:/php/php5apache2.dll"
AddType application/x-httpd-php .php
PHPIniDir "C:/php"

Change DirectoryIndex and add index.php, mine looked like this afterwards
DirectoryIndex index.html index.html.var index.php