OS: Windows XP Pro with SP1
Connection: Cox Cable, using Terayon Modem USB.

Ok trying to learn from the netbios tutorial, but when i try to do

nbtstat -A 127.0.0.1

or

nbtstat -A (my friend's IP)

it says:
Local Area Connection 6:
Node IpAddress: xxxxxx

Host Not Found

But when i do:
nbtstat -A (the Actual IP) it shows everything...

I've tried searching on what is wrong.. and i can't seem to find it.. sorry for asking... i'm really trying to learn Security/Networking on my own, but i'm stuck here.... argh.

Thanks for your help.