Thank you I have read through that post, most of the programs require a cash contribution which defeats the purpose of trying to do this on the cheap.
After much frustration and many expletives I have found a way to plot the data all though not in real time. I have set the the sketch to read as a C.S.V. which is recorded to Coolterm, this is saved as a C.S.V file in My Documents which is then sent to LiveGraph 2.0 which then plots the data in a graph. Convulated but it works. I'm now try to work out how graph the 3 temperature values in a single graph.