Go to the Wine HQ site and click on applications database.  If you need more applications check the listed links.
This is a problem with every development effort and nobody is blaming anybody.  The larger the effort the worse it gets.  This is probably the worst problem both Microsoft and IBM have with code.  If you change anything in Wine something somewhere will probably quit running.  This is simply the price of progress.  My comment, and it is not a criticism, is that Wine still has rough edges.  Eventually these will go away but for now, you can't simply load Wine into Linux and blindly start loading in applications.  The more complex the application the more likely it needs setup.  As versions progress setup procedures change and as a result things quit running.  Microsoft Office doesn't run without setup and neither do many of the older games such as Alice or Rune.  Even things like Warcraft come and go.  This is not a criticism it is just the way things are and that is why I think it is too early to start thinking about commercial support.
What somebody needs to do now is to get a relationship with IBM similar to the one that Eclipse has.  IBM has a problem currently because there is no native Lotus Notes client for Linux.  Wine could easily solve this problem.  I talked to some of the marketing managers in IBM and most had never heard of Wine.  The IBM development labs are currently starting to develop this native client.  If IBM could use Wine it could save them money and sueing Wine is one thing sueing IBM is another.