12Strings 0 Newbie Poster

Hi, been awhile. I'm fighting this captcha form; it's been a battle (flaws in code)
now all looks fine but it doesn't send to email. What's the obvious prob??

<?php
$name='';
$visitor_email='';
$user_message='';
?> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <title>Preview</title> </head> <body bgColor=#ccffff onload=doCookie() onunload="thank-you.php">
Text<br> <form action="http://www.SnapHost.com/captcha/send.aspx" method="post" id="myform"> <input type="hidden" id="skip_WhereToSend" name="skip_WhereToSend"
value="ckdoublnecks@yahoo.com" /> <input type="hidden" id="skip_Subject" name="skip_Subject"
value="filled out preview" /> <input type="hidden" id="skip_WhereToReturn" name="skip_WhereToReturn"
value="http://localhost/guitars/thank-you.html" /> <input type="hidden" id="skip_SnapHostID" name="skip_SnapHostID"
value="LN8ATX4CSQPT" />

Text><br> <p> <font color=red></font><label for='name'>Name: </label><font color=red></font><br> <input type="text" name="name" value='<?php echo htmlentities($name) ?>'> </p> <p> <font color=red></font><label for='email'>Email: </label><font color=red></font><br> <input type="text" name="email" value='<?php echo htmlentities($visitor_email) ?>'> </p> <p> <hr> <label for='message'>Enter message below:</label> <br> <textarea name="message" rows=5 cols=60><?php echo htmlentities($user_message) ?>