Plugfest 9 (February 2005, Section WoSS&N)
http://www.adlnet.org/downloads/index.cfm?event=main.listing&categoryId=55
See topics, dealing with Sequencing and Navigation.

Introduction to SCORM and the ADL Initiative
http://www.adlnet.org/downloads/85.cfm
Although this tutorial is high-level, it focuses in depth on how SCORM works.