XMLResultAggregator question

[John . D . Casey]

Can someone tell me how to use the HTML generation functions of the 
XMLResultAggregator (by way of the AggregateTransformer)?  I cannot 
find documentation on this, and could really use this functionality, at 
least judging by what I see in the source code...I just don't know how 
to access the createReport() method in the XMLResultAggregator...

Thanks in advance,
John Casey