There's only a Quick-start manual for VMS 10. For more information download the Pro manual. Obviously you'll have to sift out info that relates to Pro features.
If you are still lookng for help learning VNS the only source I have found in 2 years is a pair of DVD's by a guy named Douglas Spotted Eagle at "VASST.com" .. They are well done but of course DVD's are hard to use as a ref as getting back to a specific topic can be time consuming...
There was some chatter about a guide being written (not by Sony) but not sure where that effort is ... My observation is that VASST seems to provide most of the training for Sony Software products. (??) Good Luck, Knockatoone
For what it's worth, I'm currently at work on a book on Vegas Movie Studio HD Platinum that will be released through Amazon.com and Muvipix.com in April or so.
It will be written in the same style as my current "DVD Architect Studio 5.0" book.
Hopefully, its step-by-step instructions for all the tools will help clear things up.