Eeep! Need help with Security Patch

Ok I made the modifications that were in this thread...And this is what I get at the top when I go to the store now:

set customers_basket_quantity = '" . (float)$quantity . "'
Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/digiwat7/public_html/shop/includes/classes/shopping_cart.php:1) in /home/digiwat7/public_html/shop/includes/functions/sessions.php on line 100

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/digiwat7/public_html/shop/includes/classes/shopping_cart.php:1) in /home/digiwat7/public_html/shop/includes/functions/sessions.php on line 100

Warning: Cannot modify header information - headers already sent by (output started at /home/digiwat7/public_html/shop/includes/classes/shopping_cart.php:1) in /home/digiwat7/public_html/shop/includes/init_includes/init_templates.php on line 78

Please help!!!:lamo:

Here is my url:
https://www.digiscrapshop.com/shop

And I should probably mention that I installed this template (before I added the patch)

public_html/shop/includes/classes/shopping_cart.php:1

The :1 suggests that you have a blank space or blank line on line #1 of that file, probably added as a courtesy by your text editor.

Actually some of the code got pasted in the beginning of the file. Thanks so much for your help!!!