On the IIS.net site today (in the Web Platform Installer section) a new walk-through has been published on their latest release of the Web Platform Installer (version 2.0).
The Microsoft Web Platform Installer (Web PI) is a free tool that makes it simple to download and install the latest components of the Microsoft Web Platform, including the IIS7, SQL Server Express, .NET Framework and Visual Web Developer.
The platform installer also allows you to install popular PHP-based software quickly and easily on your Windows servers (like WordPress, Drupal and SugarCRM). The walk through helps you to install the software, shows you some of the options you can choose for installable software and what you can find in each of the tabbed sections.