MIT-Scheme documentaion question

["James S. Vera" <shelby!vera%fanaraaken.Stanford.EDU@decwrl.dec.com>]

I just pulled MIT-Scheme Release 7 off of gatekeeper and was
disappointed to discover that the accompanied manual has several large
gaps, namely large(?) chunks of sections 8 (OS Features), 9 (Syntax
Transducers), 10 (User Interface) and all of section 11 (Debugging
Tools).  

My question is basicly "What's Up?", to which I see a number of
possible answers:

1)  "Its public domain software and you shuld be grateful for any
manual at all."  (and I am, don't get me wrong)

2)  "You obvious don't know TeX from a hole in the Sendmail, try
printing it the _right_ way." (hints?)

3)  "These sections weren't written a first but are now available from
blah."

and

4)  "These sections aren't written yet, but will be Real Soon Now"

Call now! [$2.00 plus toll if any]

James S. Vera      |         Internet	        |Standard Disclaimers
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"When I was young it seemed that life was so wonderful..." - Supertramp