Storyboard Pro is a great freeware for editing video and making storyboards. It doesn't require any special skills to use Storyboard Pro, but if you have some, it can be much easier. Unlike other tools of similar types, Storyboard Pro doesn't limit what kinds of media you can use to put your storyboards together. You can even use flash files to create your storyboards!
Storyboard Pro is a fairly easy program to use, so even if you have never done it before, you can likely still try. This software will work with all versions of Windows, starting with Windows 98 and up to Windows Vista. If you don't know which version you have yet (especially if you are using XP), then you can search for the term "resolution tile" on the product's page on the Microsoft website. The product page will give you the exact steps you should take to get this program up and running. Download free version of Storyboard Pro and begin editing your storyboards.
After downloading and installing Storyboard Pro, you should see a window similar to this one: