Hi Involute, the regular standalone documentation is here:
http://moi3d.com/2.0/docs/moi_help.htm

And part of that are these tutorial videos:
http://moi3d.com/2.0/docs/tutorials.htm

Those ones go through step by step constructing a few simple models and take time to explain things along the way, they don't assume any existing knowledge of MoI.

- Michael