Your original Damsels user name will work in the new Damsels, but you will need a new password for it (as it is actually in a different database). Request a password below. (Note that you should use the email address that you signed up to Damsels with.) If it takes a while then check your spam folder, or ask Damsella for a new one.
(This will not affect your password on the old Damsels, which will remain the same.)