What version of Bind is it?
According to whois, btodd.net has the following info:
Domain Name: BTODD.NET
Registrar: TUCOWS, INC.
Whois Server: whois.opensrs.net
Referral URL:
http://www.opensrs.org
Name Server: NS1.VECTORI.NET
Name Server: NS3.VECTORI.NET
Name Server: NS2.VECTORI.NET
Name Server: NS4.VECTORI.NET
On the name servers listed, ns1 is probably the master and the others are slaves. The master server needs to have an entry in it delegating the SOA for btodd.net to whatever server you are loading DNS on (or is it actually on the same server, ns1.vectori.net?).
And you are not creating a subdomain, but setting up a domain (btodd.net would only be a subdomain if it were btodd.vectori.net). A name server can serve different domain names, not just it's own.
Please post what version of Bind, if you are setting up your domain on the master DNS for vectori.net or on another server, and any other pertinent info.