Hello Konstantin, I have not gone much further due to health problems. The second link you have listed does mention me,in so far as I sent in the details about five phase driving. It is still on the backburner as far as making a driver and the programme should work with a pic. The interfacing techniques for driving a motor with a pic are well documented on Microchips website.
I did manage to obtain a proprietory driver from astrosyn that I have used to test the motors I have and they do seem to be much smoother than 2 and four phase stepper motors. When I get back to full health (that is not being nagged by the missus for overdoing things) I will try out the source code that is listed, and will probably try to use some Avr's as well.

I'll let you know more as I get futher into it.

Andy.