Pie chart symbol

Hi,

I just tried publishing an MXD that was using pie chart symbols and discovered that they're not supported by ArcGIS Server. Does anyone know of a relatively easy way to put georeference pie charts on the graphics layer in the flex viewer? I have them configured in the info pop-ups but I need the pie charts (around 3 or 4 of them) to be displayed by default.

This sample is quite close to what I need to do http://resources.arcgis.com/en/help/...0000040000000/

Thanks for any help.

Mark