Ok, the following is a message that I sent to the author of the book, and his reply:

|> I stumbled across your book online at 
|> http://public.yahoo.com/~jfriedl/mre/

Wow, could I ask how you stumbled across that? It's not supposed to
be public.

|> it appeared that you may not have intended to have the entire book 
|> freely available online.
|> 
|> Am I free to post links to the full online version of your book?

Please don't, and thanks for asking / bringing it to my attention.
If you've grabbed a copy for yourself, please don't share it publically.
It's probably too late (I see from the logs that a number of copies
have gone out, so I'm probably sunk anyway )-:

Again, thanks for bringing it to my attention,
        Jeffrey