I got the writing working by removing the false advertisements and carry_transfer_animation from the CraftingPhaseStagingSuperInteraction. Not sure which portion was the bad part, or both, but this should get you motoring again. :)
EDIT: OK, my sim starts writing but gets stuck - however it does start the actual writing process now, lets her name the book, carry the notepad to a table and start writing. After a bit she closes the book and starts over. I suspect one of the other phases has a similar, if not the same, issue.
It also appears that the books are not compatible with those started on the computer, she can resume a book she starts on the notebook, but not one from the computer (actually the resume did work once, but she went to the computer to resume after selecting the resume option on the notepad).
Starting a new book on the notepad then overwrote the book she had in progress on the computer.
