From the Vienna Correspondence of the London Times. The last news relative to the insurrection came by the way of Orsova, and proceeded from a mercantile house in Salonica. By the letter we learn that the Albanian insurgents are in possession of the town of Arta; but this is, probably, a matter of little importance, as it is commanded by a large and strong castle, lying on a high hill. There is also another fortified place, called the Five Wells, not far from the coast, which, on the 13th, was still in the hands of the Turks. Although the ferment in Macedonia is great, there has not yet been any open insurrection, but the districts of Arcania (Carn) and Antolico, in Livadia, and the circles of Ibessan and Delonia, (Delfino,) in Rumeli, are in a state of revolt. The Turks have quitted Jania—the place has a strong citadel—as was to be expected, the population of thirty thousand souls being almost exclusively Greek. Martial law has been proclaimed against the insurgents, and strong columns of troops are advancing from the centre of Albania. Any further hesitation (says a Vienna paper) would be fraught with danger. If the great Northern Power is allowed time to cause the insurrection in the neighborhood of the Danube it will be extremely difficult to put it down. The Turkish troops would soon find themselves between two hostile camps. If ever promptitude was necessary it is at this moment. It is clear that a general insurrection, like that which took place when the war of liberation commenced, is aimed at.