I'm getting really confused with the resolution stuff

The C4000 is a 4 megapixel camera and can produce photos that should produce very nice 8 x 10 photos. 11 x 14 prints may be pushing it a bit. Your cameras should be set for 2048 x 1536 and the .jpg compression should be set to "Super High". Better yet, that camera can produce TIFF format. For photos you plan to print, use the TIFF format. The other half of this process is the printer. Most inkjet printers have a number of settings. Make sure that it is set for photo paper and be sure to use glossy photo paper. If you can print a 8 x 10 print in less than a minute, your printer is not set right. If it seems like it is taking forever, it is set right. .................... Using Photoshop Elements 2: Open your photo into Elements. Click Image, Resize, Image Size Remove the checkmark from "Resample Image" Change resolution to 300. Notice that the width height is about 5 x 7 inches. So if you print that photo at 300 dpi (dots per inch), you will get an outstanding 5 x 7 print. Most inkjet printers produce their very best outputs at 300 dpi. At 200 dpi, the image is still quite good. When you get below 150, you will start to see changes in quality. Now set the Resolution to 200 dpi and notice that the output size has changed to about 8 x 10 inches. Now check to see how it will look on paper. click OK. Click File, Print Preview You can verify that the photo fits on the paper and that the paper is correct (horizontal/vertical). Now print the photo. The next window that opens should let you get to your printer properties and you can verify that you have the printer set for it best settings and that paper is set to photo paper.