Hi Allen
These links should get you up and running in no time.
If you need more information on actual steps to install IIS6 let me know.
PHPBuilder
http://phpbuilder.com/board/Install forum
http://phpbuilder.com/board/forumdisplay.php?s=2e798c713685e88d9c72e2b7cfa8e0ca&f=7Install FAQ (IIS6, mysql_*() functions, etc.)
http://phpbuilder.com/board/showthread.php?t=10340995