There is yet another stylecop release 188.8.131.52. ! Download it from http://stylecop.codeplex.com/releases/view/62209
"This version has fixes for async only.
Unless there are any showstopping, crashing bugs this build will be RTW this Thursday (June 30, 2011)
This release includes the very latest StyleCop for ReSharper plugin and will automatically uninstall previous versions of StyleCop."