PHP Tutorial (Installation)
Note: You will need to download and install the Microsoft Data Access Components if your running on a Windows 9x system. Also please download PHP v5. This tutorial uses PHP v5 because it's the newest. :-)
Download the PHP zip file from http://www.php.net if you haven't downloaded PHP yet. After you've downloaded PHP, create a new folder in C:\ called "PHP". Now extract the contents of the zip file to the new folder "PHP". Go to C:\PHP and rename "php.ini - recommended" to "php.ini".
Configuring Your PHP