I went ahead and compiled all of my notes (translation: scraps of paper lying around) to a very basic, mini and always under development "documentation" for Silverlight charts.
I am currently posting as I have time, hopefully I can create a few examples as well.
Silverlight Chart Composition/Construction Overview
Working on this page to go through and explain some of the default styles and templates.
Silverlight Chart Palette (Defines the color of a chart's series)