thx a lot for the help - it works now
#include "com/fusioncharts/includes/LoadingFunctions.as"
#include "com/fusioncharts/includes/AppMessages.as"
//
import com.fusioncharts.core.charts.Column3DChart;
// ------------- XML Data for the chart -------------- //
var myXML:XML = new XML();
myXML.load("Column3D_virus2007.xml");
myXML.onLoad = function(success) {
if (success) {
var chartContainerMC:MovieClip = _root.createEmptyMovieClip("ChartHolder", 1);
//
var myFirstChart:Column3DChart = new Column3DChart(chartContainerMC, 1, 450, 325, 20, 15, false, "EN", "noScale");
//Convey the XML data to chart.
myFirstChart.setXMLData(myXML);
//Draw the chart
myFirstChart.render();
}else{
trace("warning")}
};
//
stop();