http://bugs.winehq.org/show_bug.cgi?id=18353
--- Comment #7 from Austin English austinenglish@gmail.com 2009-05-27 18:35:14 --- (In reply to comment #5)
current winetricks doesn't recognize "d3dx9" as a package. Did you mean directx9?
You need to get the updated winetricks from SVN. Look at the wiki.