If you're still confused about what phenomenology is, what Husserl was about, and how he relates to Heidegger, this October 2011 episode of the Entitled Opinions podcast may help clear things up.
Interviewer Robert Harrison starts the discussion expressing the excitement of applied, humanistic phenomenology, i.e. as it was used by existentialists like Sartre. Sheehan says that while there's not much in the way of modern, creative phenomenology going on now, there are plenty of philosophers who use Husserl and Heidegger as a launching point for their own (apparently not phenomenological) philosophies, and that in particular you can't understand Heidegger unless you understand him as a phenomenologist, as opposed to someone just concerned with ontology, i.e. metaphysics, which is what you might think given his discussions of the ancient Greeks and his emphasis on "Being."
Here's a little quiz for you to see if you got it: What does it mean to say that what Aristotle is to Plato, Heidegger is to Husserl?