[support] Webform Confirmation Message Customization

[Fred Jones]

There is a question here:

http://drupal.org/node/139629

about how to show the user the data he inputted in a webform in the 
confirmation message. This is actually common practice for websites 
nowadays AFAIK.

Anyhow the solution given here:

http://drupal.org/node/139629#comment-259401

doesn't work for me. Nor any other.

Both of these:

print_r($form_id);
print_r($form_values);

show nothing.

Can anyone tell me how I can display the data the user entered?

Thanks.