I have also updated my lwid Arduino program which drives my RF 434MHz transceiver and the ORControl Java program that interfaces between OpenRemote and the transceivers.
I can now dim my lights from OpenRemote!
The LightwaveRF library still needs more work on it, particularly on the receive side.
I am not yet decoding dimmer messages from the LightwaveRF remote. I need to do that so that OpenRemote reflects changes to the level caused by using the remote control. As usual for LightwaveRF devices, I have no way of detecting manual use of the light switch on the wall.