The numbers are section numbers, rather than chapter numbers, so that later inserts can fit into the gaps. Some things will be added and the existing pages modified, but there is plenty to read and utilize right now. (If an item isn't linked, then enter it into the search engine.)
A few people may have the interest and power to go through this in this format, but for most I'd recommend that you just go to the sections of interest, read a few introductory pieces for perspective and then pick off the articles of interest (from the Directory/Links for each section).
This is what to understand and in which order to understand it. It's key pieces are:
An overall introduction to the components.
Knowing how the brain and body work.
Knowing what creates happiness
Managing one's thoughts and replacing one's harmful beliefs
Managing one's resourcefulness (and moods)
Managing one's behaviors.
Creating meaning, purpose, and direction in life.
The overview of pschology
15 The realities of human behavior
20 Assessments and Tests - Initial
The brain, its mechanics, and thoughts 101
100 The mechanical realities
The key: thought management and belief changing
200 Thought management
Managing emotions and producing happiness
The great effect of "viewing points", roles we take on
400 Personas, viewingpoints, and ways of being
Mood management: From down or stress to "up" and peaceful
Behaviors, motivations, and "needs"
600 Behaviors and needs
650 Ways of living life
The great enhancers of personal confidence and power
700 Intention, power, purpose, values, standards and stands
Implementing it all: Planning, programs, tools
850 The tools for management
855 Time management
Learning and training
Tests and assessments