Korn shell scripting

I am attempting to learn shell programming using o'rielly book "Learning the Korn Shell".

I am finding it pretty difficult to do since the only access I have to unix boxes are running version 99 of ksh.

The book utilizes ksh93 and there appear to be many differences. I can't even follow along with the examples.

I am running into problems with setting compound variables and etc.

My question is can anyone recommend a book/tutorial dealing with ksh99? Or at least some type of bridge between the two that will allow me to utilize the book?

Humm, I never heard of ksh99. Are you sure you do not mean ksh88 or pdksh?

What unix systems do you have access to?

Sorry that's the output on a freebsd machine I am using.

I ran:
set -o emacs
^v
and I get PD KSH v5.2.14.2 99/07/13.2