What I also tried was to run the test app on my machine (Win SVR 2008 R2, x64) and a test virtual pc (Win XP x86). The test app runs fine. Also on the virtual PC, I renamed the libiomp5md.dll to junk, thus getting an error saying that the dll failed to load so that I could be sure that the test app was using that DLL.
Have you checked that your PATH environment variable contains the ia32 libraries first on the path? There are two version of libiomp5md, one in the directory for Intel 64 libraries (em64t\lib) and one in the directory for ia32 libraries.