Problems installing ATV Flash

I tried all day to install ATV Flash on mine Apple TV 1,following the tutorial exactly like it says on the site and i didn’t succeded.When i was trying to install on USB Flash,resulted a file named ‘‘Temp.dmg’’ that was appearing in the ATV Flash folder on my desktop and the USB Flash was empty.I used 4 USB Flash,Windows 7 and Windows XP and the result was the same,negative.What do I have to do?