Hi cofeeiv,
The easiest way to achieve what you want is to pick a server, connect to it in mIRC and make a channel of your own. Just join a channel that does not exist yet and you will have @ status there.
Once you have a channel you can make it private, secret or set a password (key) for it. That allows you to control who can and can not join the channel. Needless to say if you only want your friends in the channel you will have to let them know where you are and on what network.
Hope this helps!
Best Regards,
Diz
