You may then want to look at
http://www.gpsteamchallenge.com.au/guides/downloading.phpfor notes on how to setup the "standard" divisions for the gpsteamchallenge.
There is a default.rsp files you can download from there, save into the realspeed folder and it sets the divisions for you. The advanced on doesnt do dopplers (I tried both and then realised that is why they were giving different readings).
The other site worth knowing about is
mtbest.netfor some useful tips.