Super-newbie needs help with configuring name server

[Todd Flom]

I am trying to set up a primary name server for my domain flom2.com and
I'm running into the following problem, it seems as though I can either
only resolve domains internally or externally not both.

(ns.fishnet.com is my secondary for this domain, which I have no control
over)

This is the PTR entry in my 209.150.221.117 zone file
>117.221.150.209.in-addr.arpa. IN PTR ns1.flom2.com.

This is what I get when I have that PTR entry un-commented

>ns1:~ # nslookup ns1.flom2.com
>Server: flom2.com
>Address:209.150.221.117
>
>Name: ns1.flom2.com
>Address:209.150.221.117
>
>ns1:~ # nslookup ns.fishnet.com
>Server: flom2.com
>Address:209.150.221.117
>
>*** flom2.com can't find ns.fishnet.com: Non-existant host/domain

This is what I get when I have the PTR entry commented out.

>ns1:~ # nslookup ns1.flom2.com
>117.221.150.209.in-addr.arpa
> origin = flom2.com
> mail addr = root.flom2.com
> serial = 2000053101
> refresh = 10800 (3H)
> retry = 3600 (1H)
> expire = 604800 (1W)
> minimum ttl = 86400 (1D)
>*** Can't find server name for address 209.150.221.117: No information
>Server: ns.fishnet.com
>Address: 209.150.200.15
>
>*** ns.fishnet.com can't find ns1.flom2.com: Non-existant host/domain