Just been reading and thought I should clarify something in the above post.
I understand that just installing this mod won't automatically update everything and that I need to do it "manually"
When I wrote automatically update in my first post, what I meant was...
If I go to my admin/products and go to edit the product, I scroll down and leave the box checked, preview, then update.
It's working for categories and subs but not products.
Thanks, David