I'll repost the helpful part from the post I deleted so the OP can get help.
The service tag can be found on the back of the laptop, or tower system.
Click on the link bellow. ***You'll need to know your OS and type.***http://www.dell.com/support/drivers/uk/en/ukbsdt1/Product/latitude-d610
While I agree with some of what you wrote weasel, there are better ways to say it.