I am sorry for being an inactive admin, but I was really busy recently. Also, I lost interest in designing challenge problems. Instead I am doing more coding these days. While being inactive I have worked on a Java multiplayer engine called jogre and wrote some games. Also I am busying designing addons for firefox. And there are two website projects that I am working on with my friends. I do not know what to do with RoseCode as I simply do not have any time to devote. Probably, I will keep on silenty replacing the NULL challenges, but it needs some time to come up with cool problems.