I suppose Torben is the one to contact for the newbies manual (
https://openacs.org/bboard/q-and-a-fetch-msg.tcl?msg_id=0005RO&topic_id=OpenACS&topic=11).
For specific questions I suggest you post them on the Bboard.
But, if you like, you can contact me too (in Dutch). I would be glad to help you wherever I can.