The site was defaced on 2007-08-10 02:38 GMT+8 by ZoRRoKiN.
I've brought the site back up now, and looking into how this happened.
On the upside, it means I have a link from the defacement site at http://www.iyisay.com/. Mine is number 9291...I can't copy the link from the defacement page because they use a Flash image...what happened when sites were defaced with just pure text, not even HTML! hehe :)