Hey, really new to this lot, but I feel like I'm so close to getting it working

using the basic.pd file found on the hexler site I can connect to my iphone, then clicking the button below, pd sets the first fader to max, but I cannot figure out how to get the iphone to talk to pd.

My ultimate aim is to get this working in order to use the fx on traktor. Thought it'd be much simpler than this! lol.

So far, got midi yoke installed, pd extended, basic.pd and mix2.pd open, traktor 1.2.4 pro, windows 7 64b......

Any pointers on what I might need to do would be great.

thanks