Help! private nameserver setup for .co.cc domain name

My web host has set up the private nameservers (eg. ns1.mysite.co.cc and ns2.mysite.co.cc )for me on my reseller hosting account and given me two ip's (eg. 64.18.142.200 and 64.18.142.201 )addresses but I need to set them up with the registrar and I am a little (well a lot confused) The domain is hosted with w*w.co.cc (free domain names by the way) and I can change A, NS, CNAME, and MX records but what do I set for what ?? Can someone explain it to me in really simple terms, I need the domain w*w.mysite.co.cc to work as my site and the nameservers setup for any future clients to use. Many thanks in advance.....steve