Need somone to go trough the scripts handeling tax and price calculation on our osCommerce store to correct the following errors:
1. With 2 tax zones set up (2 different countries), it seems to add tax from BOTH zones when you go trough checkout. I.e 19% + 19%. Same goes for the prices displayed on our products at the store frontend.
2. When you leave the store to pay your order on paypals site, it seems to add the tax 1 more time on top of the final price displayed on our site.