Hi Rebecca,
The password hasn't changed. Every once in a while your browser's cache gets cleared out and the passwords that get stored are cleaned out.

When you subscribed to the newsletter you would have gotten an email with the passwords in it. You should have kept them somewhere to remember them.

If you can't find the username and password to get to the newsletter, the easiest thing to do is just to go to www.radiantrecovery.com and sign up for it again. You should then be sent the passwords in an email.

Hope that helps.
Kitty