You will get a generated password in your mail within about 5 minutes, and you can use that password from that point on, or change the password to whatever you'd like to use to send messages to your address.
Passwords are case sensitive.
Simply pick the date, time and timezone for your reminder, enter an E-mail address and password, then enter the event name and message you'd like to get. Well, sometimes you don't want to just get one reminder. To do that, you would set the reminder to recur every 1 year. You could set advance notice of two days to allow this. You must register first, or 2.