xbee series 2 setup?

the guide linked from here http://www.arduino.cc/en/Guide/ArduinoXbeeShield on how to setup series 2 modules appears to be a dead link, does anyone have a copy? Or care to tell me how to get these things to talk to each other? I was under the impression they were plug and play but for the life of me I can't get the two modules I have to talk to each other :'(

Thanks in advance

If you look at Digi.com, it implies that Series 2.5 modules are not meant for point-to-point communication. I spent a lot of time trying to get two of them to talk to each other, with no success. One would talk to the other, but the listener could not respond.

If anyone else has figured how to make them communicate bi-directionally, I'd like to know about it, too.

I finally managed to get them talking, turns out I had to flash one as a coordinator.

So, how about documenting the steps, and showing some sender and receiver code?