The manufacturers empty weight on their websites could well be used by the OP as weight in cabin is roughly proportionate to number of seats installed in many cases.
[URL="http://www.airbus.com/fileadmin/media_gallery/files/tech_data/jetFamily/media_object_file_A330_200_specifications.pdf"]
Typical operating weight empty 127,750 kg
this weight may be true and realistic for certain configurations but it is over 9 metric tonnes over a real life A330-200 that I found. This is why I am looking for real life data.