Things look promising in Kosovo, despite the tender ministrations of the United Nations. -------------------------------------------------- Prishtina, Kosovo SOME OF THE FRESHEST and most distinctive voices of "new Europe"--Donald Rumsfeld's term for the former-Communist states that have joined the reunited continent as ardent supporters of capitalism, democracy, and other conservative values--are sounding off in a place so new, in its own way, that less than a decade ago most Americans had never heard of it: Kosovo. Isolated by the Albanian language, an ancient Indo-European tongue with no obvious relatives, as well as by the long-standing hostility of their rapacious neighbors, the Kosovars...