That really depends on the networks services. As not all services are the same, some will have different methods of logging in to using your nickname.
Put this in Remotes.. (Alt + R)
On *:Connect: {
if ($server == [color:blue]the.server.name[/color]) {
[color:blue]Method of loggin in here.[/color]
}
}
Change
the.server.name to the server you want to auto login to.
Method of logging in here means the command you'll use to login.
Not all networks will have the same methods of logging in, for example not all networks support NickServ.
Hope this helps.
All the best,
Andy.