http://bugs.winehq.org/show_bug.cgi?id=10708
--- Comment #13 from Andrew Riedi andrewriedi@gmail.com 2008-03-19 02:49:53 --- Until I can re-implement this functionality properly, Henri Verbeet's old patchset is maintained at: http://repo.or.cz/w/wine/hacks.git
Compile that, and you should have animated cursors working. :)