Depending on your PHP installation, using plain
$skier in the SQL may not work. Try using $_POST['skier'] or $_REQUEST['skier'] .
Worst case put something at the top of the PHP page to see what the WML page is requesting. eg:
PHP Code:
<pre>
<?php print_r($_POST); ?>
</pre>
At the least you can see if anything is making it through.
-r