Click on the My-Account link at the top of the page. Below the Login fields, is a link “Lost your password?“. Click on it and fill in your email address. Click on “Reset Password”. You will receive an email soon afterwards. Click on the link in the email and type in a new password.
Make sure you are logged in. Click on this link: https://f4atd.com/my-account/edit-account/. You can change your password.
It is not possible to register. The only way you can get a login to the website is if it Admin creates an account for you, or if you buy a product on the website.