Hi
I can't send you our code but here's the javascript we use:
var myChart8170 = new FusionCharts(
"/dev/FusionCharts/MSCombiDY2D.swf",
"myChartId8170",
"1111",
"490",
"1",
"1",
{wMode : "transparent"}
);
myChart8170.render("chartdiv8170");
myChart8170.setDataURL("[url="http://mypage.com/getXML?id=a%2526b"]http://mypage.com/getXML?id=a%2526b[/url]");
I can't get you any serverside code but what getXML does is take the parameter id and the value has to be "a&b" (without quotes). The problem is that it splits the value "a&b" at the &. Have in mind that this does work as it should in version 3.2.1