Christophe,
The only suggestion I have (if no one responds to your request) is to visit http://www.ni.com/devzone/idnet/other.htm which states a few options to obtaining a driver. Drivers are developed based on demand and popularity so the more requests, the greater the possibility that one will be developed. It would also be beneficial to notify the instrument manufacturer.
Randy Hoskin
Applications Engineer
National Instruments
http://www.ni.com/ask
