Webform Description prints as footer instead of as header.

Webform is always assigned a hard-coded weight of 1 in the 2.x version of Webform. Normally the body is a weight of 0, so it should show up above the Webform form. However if you have installed CCK, you have control over this weight and it may be set to something higher, causing the body to show up below the Webform itself. You can go to the "manage fields" configuration page and set the weight of the body field to something lower to cause it to show up before the Webform form.

In Webform 3.x, Webform has started adding itself to this list of fields so you can move it up and down the list and not have to worry about the hard-coded weight of 1.

Please see the comment at http://drupal.org/node/695146#comment-3033666

Closing as this problem has already been fixed in 3.x.

How do I do this in 3.x?

Yea, I'm having some trouble finding that in 7.x-3. 4. It seems like theming is the only way to change it.