This is almost exactly the same problem Tracy is having. Try and
verify that you're getting the right data from the server. Can you
pull the url containing the delimited data in a regular browser window
and make sure you're getting the data from the server you expect? You
may need to clear your browser cache.
Another approach is to look at the result data in a datagrid.
/* Add this right below private var d:Array; */
[Bindable] public var dataAC:ArrayCollection;
/* Add this in public function resultHandler(... below d=new
dataAC = new ArrayCollection(d);
/* Add this in your mxml to display the DataGrid */
Best of luck. If you have the right data loaded, the treeMap should be