The MDE Programmer's Guide includes a tutorial that will help you get started quickly using MDE in your applications.
MDE Application Programming Interface (API) Documentation
V1.0.2 mde-sdk-1.0.2 API (HTML)
V1.0.1 mde-sdk-1.0.1 API (HTML)
V1.0 - mde-sdk-1.0 API (HTML)