Show prices without tax until final total

[Sati628]

Hello,

 

I am trying to show prices in the shopping cart without VAT until the final total.

I have managed to change the shopping cart product list .tpl file to show prices without VAT, however when you change the quantity, the prices revert back to showing with VAT unless you refresh the page everytime. heres a link to the website http://telephoneheadsets.net/order

 

Thanks