taxonomy term pages

Hey all,

I'm trying to create a site using taxonomy term pages with panels and views as described in this fantastic Drupaleasy blog post:

http://drupaleasy.com/blogs/ultimike/2010/10/taxonomy-term-pages-steroid...

I've managed now to set-up the site so that all content is automatically categorised onto individual pages according to its taxonomy term so I'm all good there. The problem I'm having is in creating a panel which will display all of the term descriptions of for the children of any given top-level term.