/me stumbles off the front porch and yaks in the yard. Why am I covered in glass?
Okay... I think I can help now.
Just follow the instructions located
here
except when it tells you to enter the server information, enter: seahorse.on.ca.xnet.org as the server.
For some reason the normal us.xnet.org hub doesn't like Macs (like most of the computing world

) so it gives a connection error.
I'm not a normal ShadowIRC user (I use ircle under OSX) so I hope that helps a bit.
Hurry in, before we drink all the :beer: