I have a site that I've been building in a directory under the root. When I try and move C5 out of that directory and up under the root, my site gives me troubles. First, I lose half of my footer which includes my log-in link. I can still log-in if I type /login in the url. Also I get a few error messages. Anyone wanna take a stab at them? I'm relatively new and don't have a lot of back-end development knowledge.
Here are the errors:

Warning: session_start() [function.session-start]: open(/home/users/web/b1704/moo.ccsandhills/cgi-bin/tmp/sess_80262e67904ffe82b8479f8efb24830a, O_RDWR) failed: No such file or directory (2) in/hermes/waloraweb049/b1704/moo.ccsandhills/new/concrete/startup/session.php on line 22

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /hermes/waloraweb049/b1704/moo.ccsandhills/new/concrete/startup/session.php:22) in /hermes/waloraweb049/b1704/moo.ccsandhills/new/concrete/startup/session.php on line 22

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /hermes/waloraweb049/b1704/moo.ccsandhills/new/concrete/startup/session.php:22) in /hermes/waloraweb049/b1704/moo.ccsandhills/new/concrete/startup/session.php on line 22

Warning: Cannot modify header information - headers already sent by (output started at /hermes/waloraweb049/b1704/moo.ccsandhills/new/concrete/startup/session.php:22) in/hermes/waloraweb049/b1704/moo.ccsandhills/new/concrete/libraries/view.php on line 841


Thanks!