error "no NS RRs found at zone top"

[help at resell.net]

I am getting these errors in my messages log and I'm not sure what they
mean. Below are the errors and the zone file in question. Suggestons anyone?

Sep 18 11:10:33 dns.resell.net named[3366]: Zone "2000themillennium.com"
(file 2000themillennium.com.hosts): no NS RRs found at zone top
Sep 18 11:10:33 dns.resell.net named[3366]: master zone
"2000themillennium.com" (IN) rejected due to errors (serial 96091552)


@      IN      SOA      dns.resell.net. hostmaster.resell.net. (
96091552 ; Serial
10800 ; Refresh after 3 hours
3600 ; Retry after 1 hour
608400 ; Expire after 1 week
86400 ) ; Minnimum TTL of 1 day
 
IN  NS     dns.resell.net.
IN  NS     ns1.dn.net.
 
;
localhost               IN  A      127.0.0.1
;
 
2000themillennium.com.      IN      A      207.226.185.152
www.2000themillennium.com.  IN      MX      10 dns.resell.net.
2000themillennium.com.      IN      MX      10 dns.resell.net.
www         IN      CNAME      2000themillennium.com.
ftp         IN      CNAME      2000themillennium.com.