v139h SplitTaxLines Module

Hi, I would like to modify my invoices so there is a tax line below the SubTotal line. Rather than how it is broken down for each item. (It looks kinda confusing when you print it out) I saw this module "SplitTaxLines" http://www.zen-cart.com/index.php?ma...roducts_id=767
But It looks like this might be out dated or not work with 1.3.9h
If any one knows if I could use this, or has a suggestion on how I could solve this problem that would be great! :)

Thanks!