Bind Bug

[AKIN]

I'm using Named 9.2.1 and when I have done nslookup I can see all of mine servers, files etc..

For example: (Using CMD)

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\>nslookup
Default Server: dslrouter
Address: xxx.xxx.x.x

>
> server datafon.com.tr
Default Server: datafon.com.tr
Address: 212.175.214.206

>
> set type-any
> ls -d datafon.com.tr
[datafon.com.tr]
datafon.com.tr. SOA ns1.datafondns.com hosting.datafon.com.tr
. (2006090400 86400 7200 3600000 86400)
datafon.com.tr. MX 0 datafon.com.tr
datafon.com.tr. NS ns1.datafondns.com
datafon.com.tr. NS ns2.datafondns.com
datafon.com.tr. A 212.175.214.206
agaoglu A 212.175.208.117
atolyeweb A 212.175.208.85
ded1 A 212.175.208.108
deneme PTR 212.175.214.204.datafon.com.tr
ftp A 212.175.214.206
localhost A 127.0.0.1
mail CNAME datafon.com.tr
mrtg A 212.175.214.204
ns1 A 212.175.214.206
odeme A 212.175.214.206
server A 212.175.214.206
sipx A 212.175.208.73
sistem A 212.175.214.204
sunucular A 212.175.214.204
terragrup A 212.175.214.206
www.terragrup A 212.175.214.206
terrateknoloji A 212.175.214.206
www.terrateknoloji A 212.175.214.206
terrawireless A 212.175.214.206
www.terrawireless A 212.175.214.206
www CNAME datafon.com.tr
datafon.com.tr. SOA ns1.datafondns.com hosting.datafon.com.tr
. (2006090400 86400 7200 3600000 86400)
>
>

Is this bad? If it is bad, how can I stop this nslookup function.
and
How can I upgrade to BIND 9 without having any trouble?

Thank you all...