these are sandbox credentials!!
I asked for new test credentials and but them into the checkout page by hand copy/pate carefully
but now am getting this error when i got to the checkout page:
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at D:\inetpub\vhosts\mylombardy.com\httpdocs\checkout.php:1) in D:\inetpub\vhosts\mylombardy.com\httpdocs\WA_eCart\WA_eCart_Definition_PHP.php on line 465