The easies way would be to boot from your fedora cd and type "linux rescue" at the boot screen. Tell it all the stuff and when you get to a command prompg type these two commands
that installs grub to your MBR again...hopefully it doens't use your existing GRUB.conf file though...but hey if it does just go to rescue again and do this
then edit your grub.conf in a text editor.
edit: I didn't notice you don't know how to use VI...try pico or joe if they are installed (they might come with fedora). If not download jed from
and install it.