I've followed the directions exactly, only I'm using Win7 64bit, when I enter the command through the maemo flasher I get "suitable USB device not found, waiting."
I've waited and nothing happens. Windows recognises when I connect the n900 (switched off, with the U key held down), but it seems that the flasher doesn't.
Is this an issue anyone else is having or am I doing something wrong?

Can I get this sorted before the rugby?