When you've picked out all your images or media, click the "Download x items" link from the left hand menu "Selection Basket". When the Microsoft Service Agreement appears, simply click "Accept" and click on the "Download Now" button.
Microsoft offers thousands of free images, animations, photos and sounds for download. MS has also partnered with stock image resellers Fotolia, iStockphoto, Veer Images, NVTOfficeClips, Presentation Pro, Animation factory and PhotosToGo to offer millions of high resolution, top quality images - but of course, those cost money.
For a great personalized and home made touch, try making your own Christmas card this season. Being a great designer is not a big deal, you just have to look for ideas you can get from Royalty free Christmas clipart graphic images you can buy online and download to your computer. And this way you get to reuse the same pictures for many years to come, as you can print, cut and paste the same images as many times as you want to make your Christmas cards and crafts.