if you're just starting out and clueless, i'd actually not recommend reading the guides first. so long as you can get a video editing program, like windows movie maker, and some video footage, (plenty available at:
http://video.google.com/ ), just import the video into your video editing program and start playing around with the program until you've figured out a few things about how the video editing program works.
once you've gotten the hang of it, you'll want to read the guides and start your anime music video.