Errors when submit button executed

I am building an ecommerce site and I have had a week of problems with the extensions in the suite. I finally have gotten to the confirm page where the information from the order hits the database and the system send out a receipt to the customer and I get a confirmation from authorize.net. Though after I click on the submit button and all of that happens I get a list of errors (that according to your forum says there are spaces in the php code). I have checked out the line of code and corrected the 2 spaces that were put in by the wizard and reloaded the pages and I still get the same error. I need some help so I get get to the end of this process to get my customers ecommerce site up.

I have attached in a PDF the confirm error code and my actual code also for my confirm page.

the confirm page pdf you sent has nothing in it, it is blank.

the headers already sent error happens because of blank space or other output to the page.

it could be a blank space at the end of a closing php block:
"?> "


a blank lines between a closing php block and an opening php block:
?>

<?php


or a comment:

?>
<!-- commnet here -->
<?php




the error points to the problem being at line 7 or 8.

see this thread for details on troubleshooting this error:
showthread.php?t=19285