LAN Ports not working?

Hi!

First off, I am TOTALLY NOOB at Tomato (or anything custom), and I don't really speak "tech" :/

I bought a WRN3500Lv2 and I have installed Shibby AIO (tomato-Netgear-3500Lv2-K26USB-1.28.RT-N5x--115-AIO to be more specific).

But I can't seem to get all LAN ports working :/
I have tried connecting the internet cables which didn't "work" to my broadband modem, and they all worked just fine.
So, I'm guessing there's some configuration I need to do? Maybe to distribute my internet connection equally between all LAN ports (I don't know, this is just a guess)?

Is there a tutorial somewhere I could use?