Huge series of question there (both of you). Maybe better to start with seperate postings for devices which don't work. Some of this will be covered in the documentation for individual programs. Some will be covered in the Docs section above, some in the HOWTOs (which you'll need to install through apt-get or synaptic). If confused, post here.

As the label says, after a HD install, Knoppix basically becomes Debian: you'll need to do some configuration yourself.

For myself, I'm still awestruck that the HD install configured my scanner correctly!