Microsoft Photo Editor is a freebie that comes with Microsoft Office.  If
you have Office installed, you should be able to find it somewhere on your
start menu - look under Start/Programs/Microsoft Office/Microsoft Office
tools/.

If you have Office 2003, it has been renamed: it is now called Microsoft
Office Picture Manager.

If you don't have Microsoft Office, there are plenty of free programs that
you can use to open and print photos - here are two:
http://picasa.google.com
http://www.irfanview.com/

Good luck!