you need a linux partition to install Fedora on !
but when fedora 11 is install, it will compeletly remove the already installed windows XP
NO it will not do this on it's own you would have had to TELL the installer to do this
that IS NOT the default for fedora
Now the XP install cd WILL "borg" a linux install and auto turn it into a MS windows install
BUT the fedora install dvd WILL NOT do that all by it's self
nothing new other than the fedora dvd and grub WILL auto install to the MBR ( fedora 8 also did this) BUT the partition layout IS NEW 256 bit inode instead of the old 128 bit. This can be changed in the setup, if you want to use the MS bootloader to start grub.
also the fedora installer IS way better at ADDING a windows install to Grub ( listed as "other" ) in the boot menu