Are you sure that wine's d3d9 is available? (e.g. missing opengl libs on your linux system?) the GdiEntry13 stub sounds a bit like it tried to use native d3d9.dll, which doesn't work on Wine(and most likely never will)
Yes i'm sure, as the biggest problem that prevented the app from running was apparently in IDirect3D9ExImpl_EnumAdapterModesEx; the app crashed right after the fixme for that function was printed. Disabling d3d9 got it futher.
As for GdiEntry13: it's documented on http://msdn.microsoft.com/en-us/library/ms648442(VS.85).aspx (see GdiEntry13 is #defined as an alias for this function) Apparently it is called from some kind of dll from the .net framework.
(ps.to James:for clarity, i didn't have to do anything nasty to get the app running (and i even lack those capabilities ;) ) : all unimplmented functions are documented on msdn, so it ;s just a matter of returning some obvious return value. The only function that seems undocumented is NtSecureConnectPort, but fortunately that can be found in wine's include/winternl.h)