Yep. Thank you very much.
In fact, I was looking for a method to apply my addresses (which I often will have to share over the net) to a more "consistent" domain service than co.cc. Maybe it's only an fake impression, but i don't like at all the renewal system they apply. So i tought: "maybe there is a way to obtain my original x10hosting domain name, which will never be deleted". It would be pretty cool, too, but at least i think I can do without.
Thank you anyway for the precious explanations and for your time spent replying my newbie questions
Have a nice day,
Luca