"memory card can' tbe used. Card may be damaged."

There is a tiny slider switch on the memory card, move it to the unlock position.

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.

Get a card reader and use it to download the pics to your computer. Then, format the card in the camera.

Sorry to say but this camera does not come with a internal memory with it, so you really need to get a memory card for it for you to use it.
Here;s the link for the complete specs of this camera.

http://www.digitalcamerareview.com/default.asp?newsID=3317&review=Nikon+D60

turn on the camera and find the reset function in the menu. reset it. then find the format function and reformat the memory card

Sounds like your computer or the software program you're using to download your pics is set to automatically erase the card after the download.

First of all, recover lost files from memory card
1. Do not save any new file to memory card.
2. Connect memory card to computer. You should see memory card shown as a drive letter (like H:) in My Computer.
3. Download best photo recovery software from here
this asoftech photo recovery program help me before, works quite well and it's easy to use
4. Install and open asoftech photo recovery program, select your memory drive, and click 'Start' button to start scanning process which will find your photos.

After you get back your photos, you can format the memory card to fix the problem.

In your manual you will find how to change the display format (picture only, histogram, etc.). The time it's taking to display your image "might" be that your memory card is getting quite full and you're shooting large images. I shoot a D80 and it uses an SD card. Make sure you but a fast memory card if your camera does not buffer the inage before writing it to your memory card.

the memory card has a small lock in it u need to release tat it wil be at the side of the card scroll it down r up as per the detail it has
then u can use memory card

Are you shooting NEF or JPEG? Most printing kiosks and such won't recognize NEF files.