Product Listing with extra column for extra field

I'm sorry if this has already been covered,
if someone could just point me in the right direction

Is there anyway to add the heading "PRODUCT CONDITION" on the Product Listing page that shows the condition of the product like USED or NEW? I added the PRODUCT CONDITION contribution and it only show it on the actual Product Details page.

I'm horrible at explaining. Hopefully you can help!
Thanks!

We are busy to implement this into the new version.

If you need more information:

Product Listing with extra column