After some fiddling I have found that the FFTW lib also need some "adjustments" in order to be activated ...
Reading the fftw docs I suppose I could use the pre-compiled libs (dlls) that come with the default package or do I have to build them together with IM (VisualMT) project ?
Although I have read and followed the instruction in :
viewtopic.php?f=4&t=14251#p56836
Now I am not able to build the imagemagick VisualMT project ....

According to the previous post I were not able to find the following passage ...
..." - in linker|General|additional libraries directory add the path to the fftw directory: c:\fftw-3.2.2"
"- in linker|Input|additional dependencies add libfftw3-3.lib"
In Visual C 2005 I am not able to find or define such detail ...
did anyone put the fftw working with imagemagick in a windows and visual C++ 2005 IDE ??