Help required - With Kid Gloves!

Managed to get reporting to Wunderground. I had to run the file CRONWU
Everything is now running and updating though the data appears to be wrong. The temperature reading on my Irox is 12.5deg C, but on WU its showing as 0.1deg C, and on the consolewd file scrolling on the Pi box its saying - Current Data Temperature = 0.4 and the next update its -0.4 and keeps alternating between the 2 values. The pressure is out too, Irox display is reading 962.4 but WU and file are reading 986
Any help greatly appreciated.