The ollie is the big one. Without it, you're really going nowhere. And being able to ollie standing still on carpet while holding onto two chairs with your mate there to catch you if you fall over is not going to help. I'm afraid there's only so much you can be taught about the subject from tricktips. You really need to learn it yourself, or you're really never going to learn to skate at all. But just in case you really don't have a clue, I'll explain the basic mechanics of it step by step.