Browse around for latest entries on Google for keyword playsms and found this:
https://aacable.wordpress.com/2015/05/08/fun-with-sms-management-system-playsms/
The article is explaining playSMS 1.0-rc9 installation and its basic usage in a simple way but in my opinion the right way to do it, it has screenshots with markers and it is also targeting beginners. The article could also be used as playSMS 1.0 references as both playSMS 1.0-rc9 and playSMS 1.0 are only slightly different.
Enjoy.
playsms.org 