Ok in that case, right click on "my computer", go to the tab "hardware", in here click "device manager".
Look for dvd/cdrom drives, open this to see the name of your cd writer/model. Download the drivers from the internet for it (usually on the manufacturers website, or drivers.com)...then when downloaded, install them.
To doa test tosee if your cd writer is set up anyway, just put a blank cd in, open "my computer", open the dvd/cd drive and drag an item into it to see if you can burn a disc.