Whoa!
I downloaded GIMP and got it to run.
It may be way way way more than I need.
I don't even know if it will do what I need.
I have digital pictures I took with my Nikon COOLPIX in 1600 x 1200.
I have to e-mail them to a friend of mine.
I don't want to CROP the pictures.
I want them exactly the same, but with lower resolution, 640 x 480.