If you are using Windows 7, you'll want to get Windows Live Essentials. It's free! Windows Live Essentials provides some features that were previously included in Windows Vista and other Windows operating systems, like programs to:
And Windows Live Essentials seamlessly connects what you do on your PC with the online services you use every day, like Windows Live Hotmail, Facebook, Flickr, Twitter, and others. One easy download gives you Windows Live Photo Gallery, Mail, Messenger, Movie Maker, and more. With these great applications you can get even more out of Windows 7.
Windows Live Photo Gallery