Actually the godaddy whois info just shows that the domain is registeren untill 13/08/2010 and that is can not be requested for transfer, renewal update and deletion.
Which actually means nothing... it's still valid.
As I see it, the nameservers ns1.rpg-works.net and ns2.rpg-works.net are not properly configured for tharel.net, something godaddy has to fix.
Had the same problem with my own domain before and they had to get rid of mine and reset in in the system and it worked...
Has nothing to do with the person to who it has been registered.
The prohibited thing are normal with a .net domain. If you request a transfer, renewal or update with you company godaddy.com they will make it happen.
(please note i could be wrong aswell, but this is based on my own experience...)