I've updated JA Sensei to version 1.7.1. This new version integrates Kana audio quizzes and 300 new words for the Vocabulary module (total: 1700 words now).

Japon4910 has also worked on a document to help you to learn and write hiragana. You can download it from the Multimedia section. I'm much grateful to him as it was a huge work that he did for the site and you.