Trouble getting up and running

[penguin]

In my Welcome email, I received this notice:

"If you are keeping your domain name at your current registrar
please update you name servers (DNS) to the ones below.

ns1
ns2

If you don't know how to change your name servers at your current
registrar, please contact them for instructions. If they are nice
people they should be willing to help."

I have no idea what this means, who my registrar might be, or how to accomplish this task. I can't find it in the help or turorials and Support seems unwilling or unable to help.

One thing is for sure, my site is published and not accessible on the internet.

Help,

Penguin

[VodaHost]

In order for your domain name to work on our
servers you must change your name servers at
your current registrar to the below...

If signed up before September 13, 2005 please use the below

ns1.vodahost.com >> 70.86.30.66
ns2.vodahost.com >> 70.86.30.67

If signed up after September 13, 2005 please use the below

ns3.vodahost.com >> 70.86.138.226
ns4.vodahost.com >> 70.86.138.227

Until you do this, your domain name will not function correctly on our servers.

If you do not know how to change your name
servers. Please give your current reigistrar
a telephone call. Im sure that they will be
more than happy to help.