On the Desktop right click on 'My Computer' and select 'Properties'.
Then select 'Harware' and then 'Device Manager'.
is you CD rom listed in the list of hardware?
If it is right click on it and select 'Properties'
Uninstall the device and then restart windows, it should auto detect th cd rom and install the neccessary drivers.
If the cd rom is not listed, post again and we will see where we go from here