When you are asked to login to liveSite, click on the “Forgot Password?” link and enter your e-mail address. liveSite will send you a new temporary password for you to login in with.
If the "Forgot Password?" link is not visible, then this feature has been disabled. You will need to contact your liveSite Administrator who will need to "Reset & Send" you a temporary password.
If the User can remember their password by viewing their Password Hint, then they will have the option of not requesting their password to be reset and e-mailed to them. Since this feature may be a potential security risk for the User's account, it must be enabled from the Settings page in liveSite, and the User has to have entered a Password Hint the last time they changed their password.