[signup page error message in text fields]

Hi,

I have a site that is using php to take orders....when the customer gets to the step2 here: [a href=\"https://wind.securenet-server.net/~iroam/step2.php\" target=\"_blank\"]https://wind.securenet-server.net/~iroam/step2.php[/a] the text fields have this message :

<br /><b>Notice</b>: Undefined index: first_name in <b>/home/iroam/public_html/step2.php</b> on line <b>371</b><br />

The only changes i made to the config.php file was changing an email address.

please any advise would be great

regards
mike