I have purchased a domain name(mxsoup.net) through GoDaddy, and it is just parked. In order to set up my custom URL for my SourceAudio site, they give me the following instructions:

In order to host your site at a your own URL, we need you to set up some DNS records to point your URL to us. Specifically, we need two CNAME references, one for 'www.mxsoup.net' and one for 'secure.mxsoup.net', both of which should point to 'web2.sourceaudio.com'.

But the rep on the phone at GoDaddy said that my site is hosted at HostMonster.com, and therefore I need to talk to them to accomplish this(which is possibly true, but my business owner says he hasn't purchased hosting for this particular domain, yet he does have some other sites in his hostmonster hosting acct.) My GoDaddy account shows that my nameservers are pointing at NS1.HOSTMONSTER.COM, and NS2.HOSTMONSTER.COM, and I can edit those. But is this the same as setting up the CNAME as described above?

Any help would be greatly appreciated!