Once you get mIRC installed and running, now you need to connect to
#Sanguinarius on the Dalnet network....
Step One
Go to the "Options" screen -- on your toolbar, click the
icon with the hammer next to a folder:

Step Two
On the resulting popup box, click "Connect" (which should
open up several options) then "Servers", as illustrated
below:

Step Three
If your "IRC Network" box (The darker grey one in the above
graphic) says anything other than 'DALnet" you need to select
the DALnet network. Click the "IRC network box" to get the
pulldown menu and scroll down until you can highlight the DALnet entry:

Once you have DALnet selected, click on it. The pulldown will go
away and you'll be presented again with the options screen:

You can choose an IRC Server if you like (the darker grey box in
the above graphic; this is different from the actual IRC network),
or you can leave it at the default "DALnet: Random server"
selection (which is usually recommended for new users).
Step Four
Click OK.
Connect to IRC. (click the lightning bolt icon)
Once you are connected, type: /join #Sanguinarius
You should be all set!