His post is a guide to setting up a development environment on your newly upgraded system. He's broken it up into quite a few steps:

• Enable Developer Tools
• Editing Configuration Files
• Enabling PHP
• Starting Apache
• Visiting our Web Site
• Showing the World
• Enabling a Personal Website
• Virtual Hosting
• Sharing with the World, Part II
• Installing MySQL
• Bring the mysql.sock to PHP
• Where is PEAR?
• PHP .ini configuration

Don't worry, each of the sections in the list don't have much more than one or two paragraphs under them and they're loaded with links to help you through some of the more detailed points.