Click on the "forgot your password?" link on the sign-in page.

You will be prompted to this page, please fill out your information. After submitting this information, you will be emailed a link that will take you back to VAN to reset your password. This link will expire in 48 hours. 

Please Note: Your Account Name is not your "actionid" email. Typically, your account name is the first letter of your first name + your last name.