First and foremost, I'm not very savvy with this stuff at all, so I apologise if this problem sounds incredibly dumb.

Here's the issue: I rent a managed dedicated server for my website. My host recently changed datacentres, and the nameserver IPs were changed. Once I was given the new IPs, I contacted my domain registrar and asked them to update the nameserver IPs to the new ones 216.183.51.135 and 216.183.51.136 (for ns1 and ns2 respectively). Everything seemed to go smooth.

The problem I'm having appears (!) to be in the setup of cPanel. DNS Report is showing the nameserver IPs as the old ones, 64.193.62.146 and 64.193.62.147:
http://www.dnsreport.com/tools/dnsreport.ch?domain=tokyomonsters.com

To be honest, I really don't know much about anything, so here's what I see. Hopefully someone who actually knows this stuff will be able to see out the problem...

The assigned Nameserver IPs still have the old IPs listed, and I can't delete them (receive an error "Sorry, the nameserver ip 64.193.62.14X cannot be removing since it is still registered with an ICANN register."). The two new IPs are both listed as ns1, which is obviously incorrect too:

http://img250.imageshack.us/my.php?image=ns15bq.jpg

All the DNS Zones for the site have been updated to the new IPs:

http://img250.imageshack.us/my.php?image=ns20tk.jpg

Main Shared Virtual Host IP has been updated:

http://img102.imageshack.us/img102/7398/ns31hp.jpg

When I check IP Usage, localhost.localdomain, server.onehostnation.com and server.tokyomonsters.com are all still using the old IP 64.193.62.146, when they should be using 216.183.51.135:

http://img359.imageshack.us/img359/2414/ns42oq.jpg

The old IP 64.193.62.146 is still appearing in the IP address list, but can't be removed:

http://img359.imageshack.us/img359/9705/ns57kq.jpg

When trying to assign the new IPs to the nameservers, I'm simply told it already has the old Ips assigned "Sorry, the nameserver ns1.tokyomonsters.com already has the ip 64.193.62.146 assigned to it.":

http://img391.imageshack.us/my.php?image=ns60zt.jpg

I'm probably doing something incredibly dumb, but again, I don't really know what I'm doing anyway. With the server move and nameserver problems, my sites have been offline for almost 2 weeks, so it's getting a little annoying now. Any help would be greatly appreciated!

Make 100% sure your domain registrar changed the IP's for the actual nameservers, not just your site.

Secondly, you need to edit /etc/nameserverips to reflect the new nameservers. It should look something like:

216.183.51.135=ns1.tokyomonsters.com
216.183.51.136=ns2.tokyomonsters.com

or whatever. If the old IPs are in there (which they probably will be by the looks of the images you posted), just get rid of them.

Restart named and you should be set.

Thanks so much for the advice, Bryan! Finally feel like I'm making some progress.

I've managed to edit some stuff via SSH.

In /etc/wwwacct.conf I edited it the nameserver section to:

NS ns1.tokyomonsters.com
NS2 ns2.tokyomonsters.com

In /etc/wwwacct.conf I changed it to:

domain tokyomonsters.com
search tokyomonsters.com
nameserver 216.183.51.135
nameserver 216.183.51.136
nameserver 127.0.0.1

And finally in /etc/nameserverips I removed the screwed up NS listings (seen HERE) and changed it to:

216.183.51.135=ns1.tokyomonsters.com
216.183.51.136=ns2.tokyomonsters.com

Buuuut, now when I got to Networking Setup > Nameserver IPs in cPanel, it automatically adds the old un-removable 64.193.62.146 NS back in (at least it hasn't effected the two new ones):

http://img382.imageshack.us/my.php?image=ns10ff.jpg

The changes have visibly been made back in the /etc/nameserverips film again:

http://img299.imageshack.us/my.php?image=ns28be.jpg

Also in cPanel's Server Configuration > Basic cPanel/WHM Setup, I'm still receiving the "Sorry, the nameserver ns1.tokyomonsters.com already has the ip 64.193.62.146 assigned to it." message:

http://img391.imageshack.us/my.php?image=ns60zt.jpg

Are there any other files I should have edited in SSH? Big thanks again for any help you can offer!

Best,
Jim B.

"Buuuut, now when I got to Networking Setup"
"Also in cPanel's Server Configuration > Basic cPanel/WHM Setup, I'm still receiving the "Sorry, the nameserver ns1.tokyomonsters.com already has the ip 64.193.62.146 assigned to it." message:"

Looks like you edited everything properly. You really shouldn't use the networking set, or the cPanel nameserver config if you added the new nameservers manually. You will almost always get the "already assigned" message using that method.

As long as you have edited everything manually, and removed the old nameservers, everything should just work when your nameservers finally get the correct IP's assigned to them by your domain registrar.

Bryan