The eq directory is your client directory (game directory)
The map directory is optional (i set it to eqadmin directory)
If set it shows a map in the spawn tab, and where your
spawns are.
I'm assuming you haven't installed mysql yet. You must go
to
www.mysql.com to install a database on your machine.
Your host is your database name. Your login/password are entered to access your database. (you can understand why eqadmin needs these things).