Thanks Kim & Dr. Byte.

Changed the stylesheet by removing the float, and added a max-width:

TEXTAREA {
margin: auto;
display: block;
max-width: 500px;
}

Put some breaks in English/email_extras.php:

// email advisory for all emails customer generate - tell-a-friend and GV send
define('EMAIL_ADVISORY', '-----' . "\n" . '<strong>IMPORTANT:</strong> For your<br/> protection and to prevent malicious use, all emails sent via this web site are logged<br/> and the contents recorded and available to the store owner. If you feel that you have<br/> received this email in error, please send an email to ' . STORE_OWNER_EMAIL_ADDRESS . "\n\n");

It's working and my SEND button and email advisory aren't floating off the right side of the page. Any probs foreseen with these changes?

Thanks so much!