Hi,
As i saw in your website, you are not using CleanMart, you are using official Virtuemart layout, thus the prices should be displayed as normal.
Make sure you define a "currency" first, and make sure the prices are properly set for products. Enabling "Final Salesprice" option is enough to display the prices, so your settings are OK in the Configuration >> Prices, but it must be because of something else.
Since the problem is happening with the "original Virtuemart" (without any template, like; CleanMart) i can't think of anything else. It must be because of miss-configuration in the Virtuemart Backend.
Regards.