Hi All,
Sorry for the long delay in making the source code from our Developer Training Videos available, but now just in time for the holidays, you can get the code from here:
http://www.mojoportal.com/guest-book-tutorial-files.aspx
I really think that the benefit of the tutorial series comes from writing the code yourself based on the videos but occasionally people run into troubles and it can be helpful to refer to the source code in my example to compare against your own version of the code. Actually all of the mojoPortal source code is a great resource for example code and to learn how to do specific tasks that you may want to accomplish in your own features, so don't limit yourself to the Guest Book example code.
Best,
Joe