I have an 8 megapixel Canon EOS Rebel XT. It is a very good camera, but I notice that when I open images in my editing program that the resolution of the images is always 72 pixels. The size of the image is huge - 3456 X 2304 - but how can I increase the resolution? Any tips on getting sharper images would also be appreciated. Thanks.

I have had a Kodak camera for about 6 years and want to upgrade. I do not like the new Kodak cameras but like the computer software that comes with it (I tried a Kodak briefly but the pictures were almost always out of focus). Is it possible to buy another brand camera, say the Canon Powershot 650 IS and still use the Kodak software, not the Canon software? Or is there a Kodak digitial camera you recommend with good quality pictures?