The output of your command is, that there are broken packages.

The command "apt-get -s -t unstable install kdict" does work however.
The output is already listed in this Thread (my second post in this thread).

The packages that are to be removed are:
cupsys-driver-gimpprint kalarmd klprfax libfam0 libkcal2 libkgantt0
libqt3-dev libqt3-helper libqt3-mt libvorbis0 nas-dev qt3-tools

That looks ok to me.
I just hope that nothing of the cool knoppix preconfiguration gets lost on the way.