2 currencies on a site

[megain]

Hi, all!
I from Ukraine and i have problem.
I have joomla 1.5 with Virtue mart 2.0.14, the problem in the following, costs the main currency of UAH, and 2 currencies of euro and $ are simply added. When I add the price of goods in uah, the price is displayed normally but when I put for example the price in $  that it displayed all the same as uah. I will be glad to the answer.
To P.S sorry for my English.But I from Ukraine.

[Milbo]

http://forum.virtuemart.net/index.php?topic=104795.0