problems with addon domain

[fenick.ru67]

hi,
when I add domain in .ru zone I see this error:
"Error from park wrapper: Sorry, cannot determine nameserver IPs. Please make sure that the domain is registered with a valid domain registrar."
I put in the ns1.x10hosting.com and ns2.x10hosting.com in my domain account.
please help/ what i need for domain adding?

 

[descalzo]

http://network-tools.com/

Put in your domain name to make sure that your nameservers are set correctly.

 

[fenick.ru67]

http://network-tools.com/default.asp?prog=express&host=fenick.ru