Think the advice is go directly to the mes website and buy the adapter from them, "think" you only need the yellow one but I've not got either so wait for other posters?
Go to gendan.co.uk This is a totally decent site and there is also a good user forum. I paid about £125 for the software a license and all the wires and connectors and it has been money extremely well spent. It saved money identifying issues for warranty and resets the service indicators as well as being a mine of information. The softwear covers all fiats and lancias and several others as well. Its not quite as detailed as Fiats dealer system but seems not far off.