@DaleG: I think the best way to learn Moho is to use it and if you get stuck on a particular item, ask for help. The tutorial and manual should be enough to give you some idea what's possible with Moho. And no, there isn't any other manual available (or a book), however, you might have a look at some of the
links LM has placed on its website.
If you don't want to bother people with beginner's questions, you can always check with a forum search if your question has already been answered.
And please don't worry if you don't understand everything in Moho right away. The most important thing is to use it for character animation. And although I almost always forget to practice it myself:
KISS - Keep It Simple Stupid
Why try to complicate matters if it can be done by simple means? Start with simple stuff that's easy to do and if you're comfortable with that, try harder, more challenging stuff, maybe even an animated short.
I've posted some 20-30 frame animations when I started with Moho a few months ago. Got response and tips how to do things differently in Moho ("Think outside the box").
I hope this helps.