I tried to use the
usb-creator.exe from Ubuntu 10.10 desktop i386 ISO image and it does create an USB stick that doesn't boot. When I try to boot from it I get:
Operating System not found.
I try to do this from Windows 7 x64. I'm not looking to create a live Ubuntu media, only an installation USB disk.
I repeated the process several times and I even tried to reformat the USB drive (FAT32), no success yet.
The USB stick is a 8GB one.