Tried to order from Attitude but?

I tried to order some Auto Kush from Attitude. I selected US dollar on the first page. I went through the process till I got to the credit card part.
And it was asking me to pay 91 pounds. The problem is my credit card will not honor a money transfer in anything but US Dollars.
Whats the work around for this problem.
If I put my credit card info in on that page will it eventually break the charge down to US Dollars.
I may just send a money order, though I would rather use something I can easily trace.
Thanks

Johnny when you go to Attitudes page look to the extreem right and there is a converter to different currencies, changes all prices and totals.

Look to the right in the Shopping Cart section, below is a white line with GBP: Pound Sterling

yea clik where says currency , scroll down.put 420 in the box at chk out , and get extra 15% off , just to pass it along