Are there more plug-ins for Sonar 7?

 
 
I've been away from performing and recording for a long time but have found new time, energy and motivation to get back into writing, arranging and recording.  I recently upgraded to Sonar Home Studio 7xl from Cakewalks Home Studio and found the learning curve to be more difficult than I had hoped.  Don't get me wrong, what I have learned so far is incredible and I am blown away with the potential and tools that are available in this great package.  In my quest to better learn how to do the simplest functions, the manual which came with the program is vague at best (or should I say that it is geared toward someone who has a better understanding to this technology).  I checked the internet and purchased a book by Scott R. Garrigus called Sonar 7 Power!  The Comprehensive Guide.  In the book it talks about a bunch of plug-ins which come with the Sonar 7 in addition to Cakewalk TTS-1.  He talks about DreamStation, Pentagon I, PSYN II, Cyclone, RXP REX Player, ReValver, and Rapture LE.
 
Are these plug-ins within Sonar 7xl?  Is the author mistaken?  If so, were the plug-ins available in previous versions of Sonar?  Am I missing out on some great sounds in these plug-ins?  If so, are they available somewhere as freeware or for purchase?
 
Thanks to anyone who could help this old noob get a handle on modern day recording.

Thanks Beagle for the info and the link.  I will get Anderton's book so I can learn the specifics of my program. 

There's a lot read in the help files. The booklet is just a quick start guide.