I have read that it is possible to mount the iso's and install from HDD. You will most likely need a boot floppy that willl allow you to mount the iso's and boot from them. bootdisk.com might have one, bart's way might work. basically, you just need a floppy that will "trick" the computer into thinking that it is booting from a CD. also, search
www.google.com/linux for "boot floppy" "instal from HDD" fedora. or variations of this. You might be able to do a net install also, search for that at google also.