getochn - I see you haven't actually read the page that you posted - it says no Windows 8 driver found. So, the original question is still unanswered - no Windows 8 driver.
I have got it working (ish) with the Windows 7 driver, but the problem is that when plugged in, Windows 8 sometimes takes a long time to shut down. If I unplug the scanner then the shutdown is quick.