If you want to change your password you will need to log in and follow these instructions:
Account Settings--->Settings--->Password--->Expand--->Enter Password Info
If you forgot your password you can change your password by entering in your email. Click here to enter in your email address. You will need to change your password within 15 minutes of receiving the email.
If you do not receive an email you probably signed up with a different email or it went to your junk folder.
If the link is taking you to your dashboard, please go to Account Settings to change your password.