Changes

Latest Thunerbird installer location [ftp://releases.mozilla.org/pub/mozilla.org/thunderbird/releases/latest/win32/ ftp://releases.mozilla.org/pub/mozilla.org/thunderbird/releases/latest/win32/]

Alternative installer location [http://www.mozilla.org/en-US/thunderbird/all.html http://www.mozilla.org/en-US/thunderbird/all.html]