I was looking at this topic yesterday. Hopefully it can be of use to you!
http://feral-heart.com/index.php?option=com_jfusion&Itemid=2&jfile=index.php&topic=17302.0%20newwindow (http://feral-heart.com/index.php?option=com_jfusion&Itemid=2&jfile=index.php&topic=17302.0%20newwindow)
Also, I should probably note this: If your hat item is to big, you'll need to resize it in Blender by using "s" and dragging your mouse since that .cfg can't resize meshes from what I've heard.