FLIGHT data

I am still in the trial period and doing some flights in order to get more familiar with FSrealWX.
I have observed the following:
1. In the Flight Data Window I get all the information with regard to Lat, Lon Altitude Height etc, but not for VS. This remains 0.
2. In load Editor although I load data from FS, I get slightly different figures than those I input in the simulator.
3. The trial version does not have the full potential of a registered version?

Would appreciate your answer to the above.

Thanks in advance
JC

1. FSX
2. FSUIPC

Many Thanks.