bPieChart is a free flash based pie chart build using flash and actionscript 1.0. (my old script, but useful 🙂 )
It can be a good solution for displaying a pie chart without the need for server-side graphic library (like PHP-GD). bPieChart is portable, just embed it to HTML page and give an array parameters.
Download the source code and example below for free. You can also redistribute it and/or modify it under (GPL license)..
download source code & example