Ok. So i've heard about wireless bridges and repeater bridges but are these the right ways to set up the linksys as a repeater? Is there a better way? And which of these do I need to follow http://www.dd-wrt.com/wiki/index.php/Tutorials ?
Just think of the powerline adapters as part of the CAT5 cable connection from the netgear to linksys. You will make an LAN to LAN connection between the two (with the CAT5 and powerline adapters), turn off DHCP in the Linksys, change the Linksys IP address to a static address in the network in both the Netgear and Linksys (if Netgear is gateway at 192.168.0.1, assign the Linksys 192.168.0.2, and allow the Netgear DHCP to assign 192.168.0.3 to .254 if you have no other static devices like printers on network connections), set the same SSID in each, use the same security type and password in each wireless, and use different radio channels, like 1 and 6.
edit: and this AP setup should be more stable and faster than a bridge or repeater mode.