The camera will not deface your photos by scrawling a bunch of numbers across them. However the date and time (and a lot more) are automatically stored with every picture in its EXIF metadata. Any photo viewing/editing program should be able to display this data. To print this data, please consult the documentation for whatever program you're using to print your pictures. Depending on the program and printer you may print the date on the image, in the margins, or on the back.
ALTERNATE WAY TO TRANSFER PHOTOS TO COMPUTER If your photos are stored on the memory card, then removethe memory card from the camera and insert it into an USB memory card reader.Connect this USB memory card reader and memory card into the USB port of yourworking computer. Your computer will see this as an USB Mass Storage Device oran external storage device; you can then open the folder on the memory card andcopy the photos to your computer.Memory card reader is a handy device and is inexpensive. Youcan copy photos from other cameras and you can also download photos off yourmemory card to someone else's computer without the need of installing anyprograms.
You can download the current versions of all (free) Nikon software from here.
You're not limited to using Nikon software with your camera. The best way to download pictures from your camera to your computer involves removing the memory card from the camera and plugging it into a card reader (either built-in to the computer or connected via USB or FireWire). This is likely to be faster than connecting the camera to the computer, and won't run down your camera's batteries.
Once the card is plugged in, it will appear to your computer as a removable drive. You can use the operating system's drag&drop facility to copy pictures from the card to the computer's hard drive, the same way you copy any other files. Or you can use any photo cataloging program such as Nikon Transfer or Picasa.
In the P, S, and M modes, turn the command dial on the back of the camera. In the A mode, turning the command dial changes the aperture and the camera will change the shutter speed to compensate. In the point&shoot modes the camera will set the shutter speed on its own.
With a formatted card installed in the camera, press the MENU button, select the Playback menu (right-pointing triangle), then select the "Copy" command.Full details are in the "Copy" subsection of the "Playback Options: The Playback Menu" section of the manual (page 134 in my copy). If you need a manual, you may download a copy here.
The display being distorted can be due to failure of the LCD or the CCD which is the optical sensor of the camera. So to confirm check the older picture to be seen on the display. Confirm this by checking the card on your PC. If the images/picture is seen to be of good quality, then the LCD can be faulty, fault on the linking cable or the control board.
However if the older images are seen well then the LCD is working correctly and the fault can be failure of the CCD- charge coupled device in the camera. If you have accidently exposed the camera directly to high intensity light / sunlight, then it is possible that it is damaged. Remove the battery and keep the camera aside to reset and try as a last resort. Get estimate before you decide. It will be good to have it checked at the authorised service as you do not have to run around for spares.