I am not sure this is your issue but before I start using all the tool to backup and fix I wanted to ask if you have seen this error before.
On login to the admin backend I see the following two lines at the top of the web_login:
Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/fssbr843/public_html/configuration.php:1) in /home/fssbr843/public_html/libraries/joomla/session/session.php on line 462
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/fssbr843/public_html/configuration.php:1) in /home/fssbr843/public_html/libraries/joomla/session/session.php on line 462
I am sure it is not anything to do with Akeeba but maybe in your history of working with Joomla you can point me in a direction to solve.
thanks in advance
Keith