Hi,
Since FusionCharts Free is coded in Flash 6, you cannot directly export it to image. In FusionCharts v3 also, we make use of Flash 10 code (externally) as that provides us Byte Array needed to encode display bitmap into PNG. Without this, the only option we had till Flash 8 was to send it to server, which in turn decoded it. However, in FusionCharts Free we cannot even do that, as even bitmap access is not possible. As such, your only option is to use a client side tool that can save image.
Or, if you're using .NET, you can generate the chart on server, save as image and then use that. However, that is a bit processor intensive if you've to generate thousands of charts concurrently (as Flash objects need to be instantiated on server).
Cheers,
Pallav
FusionCharts Team