Error Loading ChartDirector for PHP Extension

An attempt has been made to dynamically load ChartDirector, but it was not successful. Please refer to your ChartDirector for PHP documentation or click here for how to resolve the problem.

Error Log

Trying to load "phpchartdir421.dll" from the PHP extension directory "/usr/lib/php/extensions/no-debug-non-zts-20020429".

dl(): Unable to load dynamic library '/usr/lib/php/extensions/no-debug-non-zts-20020429/phpchartdir421.dll' - (null)

Also trying to load "phpchartdir421.dll" from "/mnt/fmirror4/gmirror/ports/graphics/php5-chartdirector/work/ChartDirector/lib".

dl(): Unable to load dynamic library '/mnt/fmirror4/gmirror/ports/graphics/php5-chartdirector/work/ChartDirector/lib/phpchartdir421.dll' - (null)

System Information

Operating System : Darwin darwintel 8.0.1 Darwin Kernel Version 8.0.1: Fri Apr 29 12:18:40 PDT 2005; root:xnu-792.obj/RELEASE_I386 x86
PHP version : 4.3.10
PHP / Web Server interface : apache
PHP configuration file location : ""
PHP extension directory : "/usr/lib/php/extensions/no-debug-non-zts-20020429"