I too was trying to do the same thing.. best solution I came up with was to find the image maybe threw google save it go to cvs.com and send it to them to be printed out. Just make sure the resolution is high enough or it will come out blurry.
That's what I think I'll end up having to do. Might take some searching to get a high res version though. Still can't believe how much Getty Images wants - I just want an 8x10 and no way in hell I'm paying $218 for it!