Ireport and XML from Web Features Service (Geographic data)

I haven't been able to produce a Report working with XML files from WFS ( http://en.wikipedia.org/wiki/Web_Feature_Service ).

I've tried with XPATH2 and it looks like Ireport receives correctly data, but I cannot get a working report with that data.

I tried with something like

http://web.regione.toscana.it/wfsvector/com.rt.wfs.RTmap/wfs?service=WFS...

Does anibody have working report from WFS XML datasource to share as examples?

Thank you alot,

Maurizio