The Netgear N600 is my main device, I have been told that I can connect the Cisco E1000 to it using the wifi of each one. I am trying not to run cable upstairs. If someone could please tell me if I can and if so how do I do this?
You will have to look at your manual, but IIRC the E1000 does not support a bridge mode.
In any case, the best way to extend your wireless network is not with a client bridge or repeater mode, but by attaching it LAN to LAN with an Ethernet cable (yes it is more difficult but it works much better) and configuring it as an AP.
And I'm not just wildly opining on this -- I ran two horrific cable runs last weekend for two clients that wanted "excellent" wireless in big homes. They were not happy with initial test trials using a pair of powerline adapters instead of a cable run. If you are not gaming or streaming HD quality video, a pair of 500Mbps powerline adapters can work (but don't expect more than 30-40Mbps actual rates).
If wireless is a must, the only solution that I have found is really acceptable for all uses is a pair of ASUS AC routers with one as the primary router and the other in media bridge mode -- set on AC the speeds are useable for everything that I've tried. The downside is the cost at a little over $300.