You can change the WebClient login password. Click on the Personalize link in the WebClient and select the Change Password tab. Provide the current password and the new password. Retype new password to confirm. The next time you login, use the new password.
From the Personalize link, select the Skin Selector tab to select the required skin for the WebClient.
Configure Automatic Refresh
From the Personalize link, select the Automatic Refresh tab to set automatic page refresh at the selected interval. You can also set the session timeout interval here.