Changeing resolution Have the resolution set at 72 ppi... how do I change it to a higher one-- at least 200 ppi (@ 6" x 4")?

On the back of the camera, push "Menu."
A menu screen comes up.

The first option is the one you're looking for:
"Image Size."

UNDER that option, the first sub-option is "8 M," the next is "3:2," the next is "5 M" and so on. That "M" is "Mega Pixels, or "million pixels." The size of the file will be measured in megapixels, and each "pixel" requires 3 Bytes of memory to define it. (A "pixel" is like one tile in a mosaic tile image.)

You change the options and sub-options in the menu by using the round donut-shaped control on the camera back. On the outside of the "donut" there are arrowheads pointing Up, Down, Left and Right. When you push the donut in the spot next to an arrowhead, you go whichever way the arrowhead points. Up goes through the MAIN options, right/left takes you through the SUB-options under the main option.

Change from a lower file size to a higher one by going left and right through the "Image Size" sub-menu. The biggest file size is "8 M" and I suspect the smallest is at the extreme opposite side of the list.

Someone apparently set your camera, maybe before you bought it, to a file size that is as small as possible, so you could fit the maximum number of pictures in the camera. But to get a better image for printing, you need to change to something with more pixels!