Hello,
I feel your pain.
Updated, consistent and centralized documentation is not strong in Pharo. Things are changing fast and docs don't catch up, also there is an effort to move projects to github, so usually updated stuff are there. I never use Catalog anymore because often things goes wrong. Books are only good to explain major concepts that are less likely to change over time, in order to getting started I would recommend:
1- Seaside github project:
https://github.com/SeasideSt/Seaside. Their readme and wiki page seems to be very good and updated, I just evaluated this on playground and it worked as expected:
Metacello new
��baseline:'Seaside3';
��repository: 'github://SeasideSt/Seaside:v3.4.1/repository';
��load
I avoid using master tag as it is usually development branch or frequently has some commit that breaks everything up and and what I want is something reliable, so I always use version tags (when the projects provides one).
3- Then you can go and read Pharo by Example and Deep in Pharo books in order to get more information after you can get started, if you are interest, but by now you must be able to do most basic stuff with the system..
Hope that helps you getting by and fuel you interest in Smalltalk and Pharo.
Regars,
Vitor