Sorry I haven't used this plugin myself:-( The author is Julien Roche.
Regrading question 1: I would guess that if you start with an empty
div and you replace it with your form panel, the one containing the
CKeditor then this will trigger the JavaScript that will generate the
editor. Did you try doing that?
Regrading question 3: we could try to compose some examples and
publish them with the demo application. I don't think we have any
examples right now: at least not on wiquery-plugins project.
Regards,
Ernesto