I would say I've had some experience with the RocketDock toolbar!
I may not have 1,500 links to go through but I still manage to collect a never ending amount as time goes on at the same time.
You run it! I run it! But... what about all those who don't? That's the purpose of having a guide like this to begin with.
I'm glad to see Shawn jumped on this one promptly when people were discussing how the Favorites are now seen opening up on the right side and how to see them pinned over to the left as seen with previous versions of IE since people often need a good reference when changes to "all too familiar" layout.
It's just an observation but a guide like this is intended to show how to use what already comes included in IE 9 not something you addon separately.
As for mounting folders on RocketDock and other mods a better place for that would be a new discussion thread under Customizations or Browsers & Mail since that involves a 3rd party app. A good title for that may be "how to mount your IE Favorites on the RocketDock toolbar" where you could go into details on how to do that. And considering writing a guide for that could be useful for previous versions of IE not just IE 9 only.