Buy a book called Genki, get the first level. This starts from the begining. Buy a nintendo ds(i) and play My Japanese Coach. Practise lots. Try and talk Japanese. Go on youtube and search people who talk Japanese. Though, I couldnt learn Japanese by myself, I do all this and go to uni and study it and it is still pretty difficult.

Learn the Japanese Alphabets with audio clips. Here is the link: Http://arcoplaza.com (navigate to e-learning, you will find the " learning Japanese basic")