As promised a few times now I have finally got round to modifying the code slightly to remove any Symfony dependencies (Although there might still be some).
This download has been created using version 0.5.0 of the Symfony plugin. An example PHP page “example.php” has been added under the web directory to show the required JS scripts and a quick example of creating a chart using it. More details can be found here: http://www.symfony-project.org/plugins/sdInteractiveChartPlugin