OK, well issue solved then. However, if I remember correctly a CNAME on the domain itself should actually be done at the registrar, and not really in your zone file (unless it is a subdomain). In my experience, more modern versions of bind will refuse to transfer such domains. But hey, that does not seem to be the case here is it transferred fine, so maybe that's just hogwash ;)
I can't reach your servers on the Internet so I can't examine the results unfortunately.