Do a HD install.
Copy the cd / dvd to hardrive, try it is a one file .iso to start (if this does ot work then just copy all the dir's and files) with and then copy the isolinux directory that is on the cd to the hard drive.
Boot into grub and type 'c' - you;ll come up with a command prompt.
At the prompt select your partition with $ root (hd0,5)
$ kernel /path2isolinux/vmlinuz
$ initrd /path2isolinux/initrd.img
PS to cp the dvd use $ dd if=/dev/your_cd_device of=/home/mine/fc4.iso