I think the main GRUB program was on the Fedora disk you deleted so nothing's working properly? Your Window's repair disk can't see the Linux ones because they're formatted as EXT3 or EXT4 or some other Linux format which Windows doesn't recognise. You'll need to boot a Live Linux CD or DVD and check your partitions and drives. Gparted is on most linux distros and should show up the missing partitions.
Do you want Windows and Linux on your system or just Windows? If just Windows you'd have to use Gparted to delete all your non-windows partitions then you have to decide if you want to expand your Windows partition to fill the complete disk or have separate partitions. I think you'd have to re-format the "missing" partition(s) as NTFS first.
Anyway, that's my
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