I just installed the cart and at the top of the cart, I'm getting these errors:

ini_set('session.use_trans_sid', false);
Warning: session_start(): Cannot send session cookie - headers already sent by (output started at /home/waterspa/public_html/cart/index.php:2) in /home/waterspa/public_html/cart/includes/functions/sessions.php on line 102

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/waterspa/public_html/cart/index.php:2) in /home/waterspa/public_html/cart/includes/functions/sessions.php on line 102

Warning: Cannot modify header information - headers already sent by (output started at /home/waterspa/public_html/cart/index.php:2) in /home/waterspa/public_html/cart/includes/init_includes/init_templates.php on line 78
You can see them pop up here:
http://waterspan.com/cart/

Any idea what I can do to resolve these errors and warnings?

Thank you for your time, Alex
BTW, My webhost is iPowerweb.com