I tried dropping the license file I downloaded onto my current version, which I think was up to date, it said it was invalid. (The license key you are trying to activate is invalid. Please contact support at http://www.utorrent.com/get-help.) I tried to download the version that is "pre-registered, but it said it was an invalid link. I downloaded the free version, (some links work some do not) installed it, and tried to load the license file, it again, said it was invalid. The link the "invalid" message gives you is a bad link, as are other "help" links I have found.
So I have now paid $19 and have nothing for it, and no apparent way to upgrade to the Pro version I paid for!
Any Ideas?