Only the errors listed in red are critical

Errors in the first printing:

Type Page Section Error
typo Page 1, item 6   The title of the chapter should read:
"Debugging"
Not: "Assigning Values"
typo Page 4, item 6   The title of the chapter should read:
"Debugging"
Not: "Assigning Values"
format Page 83, table.  

(age>15) || (accompaniedByAdult==true)

should move down so it appears to the right of line five (which reads is true:)``
oversight Page 109, 110   All instances of the word latitude should be longitude instead.
typo Page 263 start of second line (not sentence) in text remove the starting parenthesis so it reads:
makePerson(22, 68,"Canada"), for example...
typo Page 481   first sentence should refer to Workshop 11 (not 12)
format Page 406 change text that reads:

 text at the end of step 8... second line (not sentence) destinationFrame
in monospace font
oversight Page 610   add index reference to:
Pythagorean Theorem (on page 508)
--post August 2001...      
Production typo Page 325 Figure 14.2 Beastie Boys's album should read "Licensed to Ill" (as a big fan, I would have never made that mistake)
Script error Page 517 Step 14

The line from the code:
c.gotoAndStop(onMe*alive+(c._currentFrame==1));
should be moved up so it's the very first line inside the event (before the if-statement)--this is correct in the downloadable file. (Thanks to Andy Rosenfeld for pointing this out.)
Script error Page 314 First line of code

Should start:
while (lastChar==10 || lastChar==13){
//the "|" should be "||" though it may still work.
The double-bar is intended for a logical "or".
(Thanks to Louie Penaflor for pointing this out.)
--post November 2001...      
Script error Page 111 Second line of code

Should start:
for(n=0; n<7; n++){
//the commas needed to change to semi-colons.
(Thanks to Mireille Cardinal for pointing this out.)