First, we really need to know what aircraft you are trying to use. Are you sure the aircraft has retracts?
2nd the ws2000 only has 8 channels of information passed to the software.
You need to edit the aircraft to see what channel the gear is on. It might be possible to move gear to another channel.
It might be possible to move the gear channel when editing the controller profile.
These are the things that I would look at.