@HarryT
Thanky you for the hint, now it works.
The PID was already in, I can now read DRM mobipocket books on my STAReBOOK.
Apart from a few small glitches it works just fine.
YEAH!
Finally some new life for that discontinued reader!
And here is some proof:
http://www.youtube.com/watch?v=sOawEENHZtI