If you simply want to convert existing fonts to an equivalent pc version, then the FDK is the wrong tool. OpenType fonts have a lot of new meta-data that older formats do not have, and you will have to spend quite a bit time researching and making choices about how to build the new data. These areas are:
- extended set of menu names and other text info
- Unicode encoding tables
- OpenType layout features: these are very complex for math
- Panose number and other data for the OS/2 table
You best choice for the specific task of converting is the TypeTool products from FontLab ( see http://www.fontlab.com/html/typetool.html).
You may alo be able to make do with the free conversion tools at:
http://fondu.sourceforge.net/
These do not cover all the flavors of font data you might want, but if you can figure out how to use them and they cover the cases of interest to you, they will be sufficient.
I recommend the TypeTool , as it comes with a manual and requires relatively little computer and font expertise.
The specific problem you have with the FDK shows that the Python interpreter does not know where to find the FDK add-on modules. This means in turn that you need to run the FinishInstall.py. NOTE! You have to run this as described in the installation instructions: you must run it by dragging it onto the icon for the Python interpreter. If you run it by double-clicking on it, it will make incorrect file-paths.