Hello All,
Long time reader, first time poster.
I've been building my-sensors in combo with Domoticz for a while now , and this project is one of my favorites.
I can confirm that the fritzing schema is correct, i checked it against the one i build. (whish i had the schema earlier, it would have been so much easier ;-))
I used the followin library from Rob Tillaart for the DHT22 (http://playground.arduino.cc/Main/DHTLib / https://github.com/RobTillaart/Arduino/tree/master/libraries/DHTlib) because the standard was not working...
Change line 37 to dht DHT;
comment out line 51
From line 78 i changed the code to this :

delay(2000);
      int chk = DHT.read22(HUMIDITY_SENSOR_DIGITAL_PIN);
      temp = DHT.temperature;
             //Serial.print("Temperature DHT :");
             //Serial.println(temp);
      if (isnan(temp)) {
          lastTemp = -1;
      } else if (temp != lastTemp) {
        lastTemp = temp;
        if (!metric) {
          temp = temp * 1.8 + 32.0;
        }
        gw.send(msgTemp.set(temp, 1));
        }
      hum = DHT.humidity;
      if (isnan(hum)) {
          lastHum = -1;
      } else if (hum != lastHum) {
          lastHum = hum;
          gw.send(msgHum.set(hum, 1));
      }

And it is working like a charm.
Now i ordered one of these : Wind Sensor
I want to trie to get it working with this build.
And indeed the lamp is stil available Solar Lamp

Hope this helps,
With Regard's
Peer

Thank's for the answers to this problem.
They didn't work for me, but i think i solved mine.
Stop monitoring the serial port for data from a terminal session.
See my post at Domoticz forum.