If they are trying to use the same email address to sign up as a new member this is not possible. New members need a new email address.
Assuming they are spelling their user name right, they can choose a new password at
http://calis-beach.co.uk/forum/password.asp - then all they need to do is await an email that comes automatically to confirm they changed it, click on the link therein, and bingo, they are back in CBFland
