There is a lot of info here on DU regarding this issue, here's some of it...
Canvassing day
The numbers that have been added to the county total are the 'correct' totals that the city of Brookfield transmitted to the county on election night. Those numbers have stayed the same and have not changed.
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April 12, 2011
UPDATE: 4:58 PM: Kennedy: Waukesha County investigation ongoing, but numbers appear to match up
GAB Director Kevin Kennedy says the agency's investigation of spring election procedures in Waukesha County remains ongoing, but that
the final canvass numbers in the city of Brookfield match the initial tallies from poll workers on Election Night.
"We don't see, at this point, any criminal activity, but we certainly see practices that need to be changed to bolster public confidence," Kennedy said.
GAB staff is now the process of matching those numbers for all Waukesha County wards after Brookfield ballots were mistakenly left out of Election Night returns from the county clerk. The numbers tentatively turned a razor-thin lead for Supreme Court candidate JoAnne Kloppenburg into a margin of more than 7,000 votes in favor of incumbent Justice David Prosser.
Kennedy also said GAB staff is reviewing Election Night practices in the county, saying he hopes to give the public and the press greater access to the county's results and break them down by voting precinct so that the 24 voting wards in Brookfield wouldn't be overlooked in future elections.
http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=439x867315#868764===================
Updated HuffPo article regarding Brookfield numbers and also the 2011 Waukesha turnout
http://www.democraticunderground.com/discuss/duboard.php?az=show_mesg&forum=439&topic_id=871490&mesg_id=871716