Ask HN: Is Instructor's manual for SICP worthwhile?+

I started a study group to do SICP; while I've done SICP part to part, I've never actually finished it cover-to-cover. Also, I've found the best method of learning has been by explaining to others.

While I've seen many discussions on the SICP itself, I haven't yet found a discussion for the instructor's manual.

The text of SICP I could find online, but the website tells of the existence of instructor's manual. For my purpose, is it worthwhile? It would be good if I could find a HTML version for it, like the original text.

What exactly does the instructor's manual contain? Just the answers and more exercises(and the answers for them)?