http://bugs.winehq.org/show_bug.cgi?id=16487
--- Comment #10 from Jaume Sabater jsabater@linuxsilo.net 2009-01-05 02:39:43 --- I can confirm that it works by launching the application from the console and setting Windows version to Win98. Still shows the mentioned error, but it works. I had ie6, flash and msxml6 packages installed by using winetricks.
Not sure if the bug shall be left open as the error is still there and I'd consider this a workaround.