Thanks for the pointer. Is there anywhere in the code where the number of products/reviews calculated for a particular category. I know that in building the category cache this happens though I've been enable to determine how its done to making my own function and calculating the number under that category and any subcategories.
I'll post over in the mods area as well though looking at the low activity level doesn't give me confidence that anyone will respond.
Regardless, thanks for the initial pointer.