I need to know if there is a way when users clicks "Forgot Login" and request for Lost Password, the system generates the original password and emails them.
No. Joomla does not save the original password. Only the crypted password will be stored. At login the string provided by the user will be crypted and compared with the stored crypted one.
So the password retrieve function will generate a new password, send it in plain text via email and will store the crypted password in the joomla user table.
