What format did you copy it as? Is this a linux install? If so, there should be guides on the major distro's sites, or you could ask the linux/free bsd section of this forum (I use linux, but I've always installed from a CD). If it is an iso image (if .iso is the file extention) something like nero's imagedrive is needed to mount it. If you copied the contents of the cd to the flash drive, you now have the contents, and can brows them like any other folder.