You don't need the CD. Theres nothing to install. The software you need to manage the router is on the router itself. It is delivered via a web interface. The IP will usually be 192.168.1.1 or something close. Google your model of router and you can probably find the manual which will give you the default address.
In Order To Setup Netgear Router Without Cd Check out this
How To Setup Netgear Router Without Cd?