Unfortunately, it seems that you couldn’t create a developer account for Windows 8 Store (and sell applications this way) if you live or operate a business in Romania (and many other countries): see this article. At least not yet when it launches. Too bad. Of course, we can still sell Metro style components in a traditional way, tough.
Update: Global Publisher Program is available for the Windows Phone 7 Marketplace. Hopefully (i.e. that’s the way I expect it) that program would be extended to support publishing Windows 8 Metro style apps to the Windows 8 Store also at the time it would launch or sometime later.