When you hit Save As in your program a box pops up that lets you write in the name that you want to save it with. Right under the place you type in the name is a drop down box that lets you save it as jpeg. (or gif or psd or anything else you might need.)
Oops, sorry I guess I didn't read well enough. I missed the part that said it was a Microsoft Word doc. You can't do a jpeg from MSW. If you want, you can do a print screen, and save it to your my photos that way, then open it in photoshop and cut away everything but your scrapbook page.