It's simply a matter of putting different clips together and seeing what happens. The best way to understand MTV Music Generator is to get stuck in and experiment.

Videos explained
You can access the video track from the main menu on the top of the screen. There are four main channels, as well as channels for a camera effects and a DVEs (digital video effect). You can put a shape or a background into each of the main four channels. Time goes from left to right in exactly the same way as with the music.

This contains a large number of different clips. You can place any of the shape and background clips into the main four channels, and any of the cameras or DVE effects into their respective channels. Press F6 or select 'clip library' from the menu. Demonstrate the clips by pressing F1 and load in a clip by left clicking.
Left click to place the clips into your video, using Delete to wipe any mistakes.
Press space to play the song and video together, which you will see in the small TV box in the bottom right corner.
Please note: In MTV Music Generator, pressing full-screen display will automatically engage your 3D graphics card, where available, doing real justice to your video effects.

Moving and deleting clips
This works in exactly the same way as with the music section