Welcome to the forums, Skully!
The quickest way to get back to Vista will be to wipe the drive and start fresh, and then your Vista install CD should work.
To wipe the drive of all content, go to a terminal in Fedora and issue the following commands:
Code:
su
dd if=/dev/zero of=/dev/sda bs=512 count=1
You'll need to replace /dev/sda with your actual device name such as /dev/hda.
Using the
dd command above will write zeros to the entire drive giving you a totally fresh start.
If needed, you can use the
fdisk -l command to determine your device name:
Do let us know how it goes.