Save your anaconda-ks.cfg file to a floppy if you've had success. The reason is, FC-6 built that for you and saved it with all of the successful installation instructions in it for your system. If you need to reinstall for any reason learn how to do it with that anaconda-ks.cfg file and life should be better from now on. I think it's a matter of having that file in the top level directory of a floppy disk in drive a: when you boot the computer with the fedora CD's in it and fedora is supposed to detect that file and get all of its installation instructions from that file and go and install for you automatically. At least that was the documented behavior of fedora's predecessor redhat. Ubuntu has to be told that there is a kickstart file and where to find it in order to do that though.