Problems with Link Point

[iheartguts]

ah yes, the merchant ID and PEM did not match before and now they do, thank you. i ran a test and get the following error:

USUNSPECIFIED71.106.168.6ECI1125362/home/iheartgu/public_html/shop/includes/modules/payment/linkpoint_api/1125362.pemsecure.linkpt.net11297.24 server responds: ErrNo:0 server responds: This is a test transaction and will not show up in the ReportsMon Oct 1 15:35:59 2007APPROVED
Warning: Cannot modify header information - headers already sent by (output started at /home/iheartgu/public_html/shop/includes/modules/payment/linkpoint_api/class.linkpoint_api.php:178) in /home/iheartgu/public_html/shop/includes/functions/functions_general.php on line 44

should i try running a real test while not in testing mode?

thanks again!