Questions easy to read MRP and forcasing documentation

I've also posted a similar question in the Acumatica Community site, so forgive me if this is redundant.  We are about to implement the forecasting and MRP portions of the Manufacturing module, (follow around the appropriate people and make them start to use it).  Our users are very anti technology and anti change, so I've been looking for an easier to read explaination of how forecasting and mrp works within Acumatica.  "MRP for Dummies" if you will.  Unfourtately I'm having no luck finding documentation that doesn't read like a technical document.  I need something more along the lines of explaining how to use a cell phone to your grandparents written document, preferably with photos.  Any suggestions?