I've created another hanja learning program! You can play it at
http://mannaja.piranho.de/KanjiKaiser.html http://kanjikaiser.awardspace.com
It's based on Heisig's book "Remembering the Kanji", and it's basically for learning Japanese kanjis, but you can also switch to traditional kanjis (=hanjas) by simply pressing key "2". And by pressing "escape" during the program you can see its many other functions.
It works on Internet Explorer and Firefox.