The undefined that you see on the page is hard coded on line 3 of the file:
1: <?php require_once("WA_ValidationToolkit/WAVT_Scripts_PHP.php"); ?>
2: <?php require_once("WA_ValidationToolkit/WAVT_ValidatedForm_PHP.php"); ?>
You can just remove it from this line to get rid of it. If Form Builder made this page with the undefined in it there is probably a compatibility issue with CS5 for this. The current version of Form Builder is not compatible with CS5, an update is still in the works. As for the 'Log in' title I see it in the page the same as your screen shot with the 'L' capital and the rest lowercase.