I could not find the filewebassist/ecart/checkout/credentials/gateways.php on the site, I did find it on a test site I was using. I coped the file and path to this site and checkout.php loads. Clicking on the Continue button I get Order Complete and the Submit button, Clicking on the Submit button I go to confirm.php and get the error "Field 'OrderUserID' doesn't have a default value".
This site is on my local computer and I am using static items for the cart and a database to store sales info.