For new users, I've added the requirement that passwords MUST contain letters and numbers. This won't affect existing users, but if you don't have an alphanumeric password then it would be recommended to change it, and possibly include symbols as well, for example using the @ symbol in place of an 'a' or the ! (exclamation) in place of the number 1.
Also, I do not know what users passwords are - they are stored securely within the system database. I can reset them though. If you forget your password, please try ticking the 'forgotten password' link first and you should receive an email containing it.