RT-N56U custom firmware for sky?

So I have a RT-N56U router lying around, I unfortunately had to also invest in a Wifi card, I made sure to get a decent triple antenna one (Range in this house is shocking.)
Problem is, I need a specific firmware for the device to make it work on Sky networks, I was looking at this https://code.google.com/p/rt-n56u/
But I am unsure if it works on Sky.
DD-WRT is not supported as far as I know (Unofficial mod?)