If one of your users forgets their password have them navigate to your iPrayerCenter and on the login page they will find a "Forgot Password" link.
Click on the link
Check your email and click on the button that says "Reset Password".
You will now be taken back to the iPrayerCenter where you can choose a new password.
If one of your intercessors or administrators locks themselves out of their account any administrator or super administrator can unlock the account by clicking on the lock button.