New install: 1) Install mIRC 2) Run ircN installer 3) Tell the installer where to put ircN 4) Tell the installer where your mIRC installation is 5) DO NOT CONNECT TO A BNC THE FIRST TIME! Connect normally first and join a channel so the userlist can be set up correctly. YOU WILL HAVE PROBLEMS if you connect to a BNC the first time after a fresh install.
Upgrade: 1) Close ircN if running 2) Run installer with Upgrade option 3) Tell the installer where your ircN installation is
Note: Do NOT upgrade from ircN 7. This is for upgrading from a previous ircN 8.00 version.