You can checkout the Helper:

svn co http://svn2.assembla.com/svn/cakeopenflashchart/trunk/flash_chart.php

If you don't use svn you can fetch it directly from that url.

To use it:

• Download Open Flash Chart: http://teethgrinder.co.uk/open-flash-chart/download.php
• Place inside [APP]/webroot the file open-flash-chart.swf
• Place inside [APP]/vendors the file open-flash-chart.php

Now you can use the helper.