It still doen't work. Well, I gave up cz.cc. And I tried eu.org domain(lightssoul.eu.org). Referring to http://www.helionet.org/index/topic/16505-solved-problems-registering-euorg-domain/, either heliohost or eu.org requires the other one authorized. I tired add ns records into cloudns and I create lightsoul.eu.org domain successfully. However, I failed to update the nameservers pointed to cloudns after I added ns records pointed to heliohost, which told me "bad ns list", And I also failed to update the nameservers pointed to heliohost, which told me "Answer not authoritative". So how can I park my eu.org domain properly? Thanks a lot.