thanks for the tutorial

I disabled norton firewall, and configured mIRC through windows network/firewall settings via the tutorial, but I keep getting the same old message:

'Local Host 127.0.0.1
Unable to resolve server
Connect retry #20 irc.ircchat.tk (6667)'

...again and again...
This is driving me mad...or maybe Im too stupid in not being able to set this up properly.