I just tried out Guild wars on CrossOver Game trial, and I have to say, I am extremely impressed on your work. Indeed, the wine developers rated Platinum on wine version 0.9.55 for guild wars, and I am very pleased to see that you are using that version on CrossOver Game.
There are some minor annoyances that I should report. While on fullscreen mode, switching to windowed mode doesn't give me the windows borders, so it's stuck on the upper left side of the screen without any way to adjust. Exiting and restarting the game fixes it. Again, an extremely minor issue.
Also, does CrossOver Game "fully" support DX9 now? The original CrossOver had limited DX9 support.
If it does, up to which version? The most current update for DX9 was March 2008 as far as I know.
Great job on bringing this excellent game to the mac world =).