Did you seen that items that you have to buy with Dollars in the torishop?

Example:

http://forum.toribash.com/tori_groups.php?id=32
Elf force = 3 Usd.

How do I buy them with dollars?
I click them and it links me to the item and this appears:

http://forum.toribash.com/tori_shop_item.php?id=144

But were is that special button or something that you use to buy from paypal?

I want to buy a force by using Dollars.

Thanks for your help.