'FinalBillybong' I also have Windows 7 64bit and have used the USB updater which didnt work (scared the sh*t out of me because first thing I did with my 1st pleo was update via usb and it crashed halfway through and pleo froze! Thought I had bricked the poor guy!) and the SD card method which worked fine.
The USB updater freezing is due to it being badly coded for XP SP3 as previously mentioned and it would also appear so badly coded in other ways which mean that even Windows 7 with its 'I'm compatable with anything' attitude cant run it so far as I can manage!
But hey I'm using a 32mb SD card and a $12 AU 7in1 USB card reader/writer and have had no trouble's at all so far updating my first Pleo, Shall try to update the other two soon because I'm pretty sure they are both LifeOS 1.0, but all three of my Pleo's were second hand and I dont mind them needing some care and attention to bring them up to spec
