Each user has the ability to change their password. If you forget your password, the system can email you a temporary one that you can reset to what you want. Here is how you reset your password.
If you are not logged in and forgot your password: Click "Login" link on the upper right located below the search box. Once the login screen is displayed, click the "I forgot my password" link below the password box. Enter your email address in the box provided and click the "Submit" button. A temporary password will be emailed to you. Use this to log in, then proceed to the step below.
You are logged in and want to reset your password: Click "User Control Panel" on the upper right dropdown where your login name is displayed to open the user control panel (UCP). Click "Profile" tab at the top, then "Edit Account Settings" on the left. Enter your desired password in both the "New Password" and "Confirm Password" boxes, then enter the existing password you are changing in the "Current Password" box. Click the "Submit" button below those boxes. Your password is now reset.