MUDIMOOG

Hi guys, not sure if this is the right spot but I am kind of a Newbie to Processwire and I am use to seeing more visuals of what is being done to the site like WordPress. The company I work for the guy that maintained the PW site left and there is not much info on the site so I am trying to wrap my head around trying to figure out where everything is located in the Parent and Children folders cause I am not finding what should be a logical order hierarchy to all this. Also I am trying to make this AC compliant and have no clue how to add alternated text to anything? Any tips or help would be great - I keep hearing everyone say this is way easier than WP or Drupal but I have yet seen this?