http://bugs.winehq.org/show_bug.cgi?id=6316
--- Comment #24 from Jeff Zaroyko jeffz@jeffz.name 2008-12-10 21:07:48 --- Bugzilla is not a discussion forum, please keep the comments strictly related to the bug report.
Nick: if you need help with the regression testing process, you should bring it up on the forum http://forum.winehq.org or irc, the bug report is not a good place for support.
The preloader message is answered in the FAQ: http://wiki.winehq.org/FAQ#head-f008d57967dd5f8aa3f374c27540c1b5f4815947 and the other error message you're getting is because a different version of Wine is already running, you need to make sure that Wine exits between the tests.