This is intended for use with a Jeenode and a DHTxx sensor.
Download this and put it in your .
You will also need the DHT-sensor-library from adafruit: https://github.com/adafruit/DHT-sensor-library Download that also, rename the folder to DHT and put it in your /libraries/ folder. You can also read the instruction in the readme.txt included in the DHT-sensor-library.
You can also read my posts about this beginning with this one: