You could try making the 'DMX table' for this light yourselves. Patch a number of dimmer channels in cuelux, set the fixture's start address to 1 and start writing down what happens when you bring up the individual dimmers. You can use the DMX monitor in the Options for checking the exact DMX values that are being send out.
Forward us that info and - if it's detailed enough - we'll be able to make a proper personality file.
Regards,
Maarten