Hello everyone,
I too had similar problem.
I just included <script LANGUAGE="Javascript" SRC="FusionCharts/Charts/FusionCharts.js"></SCRIPT>
But i didn't include the other files. I just copied the file FusionChart.HC.Widget.js from FusionWidgetCharts/charts/ and required SWF files and pasted in the FusionChart/charts/
Thats it.... and it worked
Thanks.