Fedora doesn't have an entry in the grub.conf file for vista. Boot up Fedora and log on as root, type command (fdisk -l)-that is a lower case letter L not a one (1), post output here. This will show your partition structure. You will then need to put an entry in the grub.conf file for windows, assuming it is on partition one:
There needs to be a space after chainloader, before the +1. Also, this assumes windows is ont the first partition so, if it's not post the fdisk -l output, probably be better to do that for accuracy sake.