When you place in a domain name, you should never include the www part. Just the mmorpg.co.cc. A whois search at co.cc says that that domain is available. Please go to co.cc and register the domain, then place in the nameservers of ns1.x10hosting.com and ns2.x10hosting.com
Edit: It also looks like you didn't place mmorpg.co.cc as the parked domain. Instead you've placed it as mmorpghub.co.cc. Yet that one isn't working. Try removing it and placing the one you want instead.