Here is a video providing a point-by-point visual aid to Port Forwarding. It worked for me and there was no bloodshed.
I use Utorrent 1.9 Beta and I have a Westall cable modem. The video was easy for me to follow. I did have to click on a few extra buttons to find "gaming options" but it's all good. It was worth the few minutes of my time that it took to transpose the video to my current set-up.