Noob question I am sure, Can someone point

Ok total newbee so please don’t shot me. I have played with the free hosting in vista panel and found it ok to understand. So I took the bait and upgraded and now I am using this cpanel stuff. If I am posting in the wrong form please tell me and I will move this thread and I am sorry for that.
The question I have is:
1. Somehow I ended paying a couple dollars to some domain company that has little to no support of any kind for Q/A. I can’t even find them on the net anywhere. So now I have this .net name that I can add up to 20 sub-domains. I am not sure where I can add those. I tried to in cpanle and it added but when I try to build that site through site build it tells me that this sub-domain does not point to my main .net name ??? Also if you know of a good company that I can use for hosting pleases advice.

2. My other question is I used the .co.cc for the free domain name and I need to provide them with the NS1. & NS2. Now when I was using vista panel it gave the NS1. & NS2. I have been looking everywhere and cannot find them. Can anyone advise me where to go on this or how to create one (if I am saying that right) ?

Again thank you for letting me post my noobish questions and if I am threading in the wrong place if you will point in the right area.