Here is a set of links to some of the Microsoft white papers for System Center Data Protection Manager 2007.
General Knowledge
Deploying System Center Data Protection Manager 2007
System Center Data Protection Manager 2007 Getting Started Guide
System Center Data Protection Manager 2007 Operations Guide
Planning a Data Protection Manager 2007 Deployment
System Center Data Protection Manager 2007 Troubleshooting Guide
System Center Data Protection Manager 2007 Frequently Asked Questions
System Center Data Protection Manager 2007 Management Shell Technical Reference
SharePoint Specific
Protecting SharePoint Products and Technologies with System Center Data Protection Manager 2007
Protecting Office SharePoint Server 2007 by using System Center Data Protection Manager