... you don't. I don't have a credit card, so I got it with a money order. It shouldn't be too hard to do it. Email them if you're unsure, they seem to be very forth-coming at eCompanyStore.
But here's what I did:
1. Print out the checkout page.
2. Place a money order for the amount written there (on the checkout page) to eCompanyStore (you can probably get the address from hteir web site, otherwise ask me).
3. Mail the printed page with a copy of the money order receipt to the same address that you placed the money order to.
I live in Finland, so it shouldn't be too hard for you (if you live where I think you live, Sweden).
