I have just posted part two in the Wizard series. This series is covering adding movement and actions to a sprite. You can head on over to XNADevelopment.com to check out The Wizard: Part 2- Making A Sprite Jump. Part two covers adding the code needed to the project to get your sprite jumping around the screen.
After working through the tutorial, don't be afraid to modify and play with the code. That's one of the best ways to learn. If you get things messed up too badly, you can always delete the entire folder and re-download it from the site. The source code is always provided just for that reason.
Feedback, as always is encouraged and makes me purr like a kitten.