If you want it to point to your current site on x10hosting without changing your main domain just set the name servers to ns1.x10hosting.com and ns2.x10hosting.com. Then wait for a few hours and login to cpanel. Click parked domains and fill out the form.
If you want to have it go to a separate folder add it as a addon domain.
If you want it as your main domain post here what we should change your current domain to.