I can very easily do up a series of instructional videos for you.
1) The Basics: What's New, Where the Old Features are, How to Use & Customize Your Toolbar.
2) Getting Started: How to Use the Templates, How to Make Your Own Template, How to Customize.
3) Looking Professional: Looking at effective Colors, Fonts, Spacing & Size, as well as Wording, Bullet Points, Placement, and Text Boxes.
4) Getting Fancy: How to Insert Audio, Video, animation and/or Motion into your Presentation.
5) Saving, Backup & You: How to use Skydrive to it's fullest.
These are my thoughts on how I would lay it out.