Hi Zhonghai,
I'm not sure what you're looking for as far as an FPGA image and firmware, but I was able to find out more about the LabVIEW driver for this device. As far as I can tell this driver is still in beta stage, and you must request access to the driver software. This site gives you the email address to contact to request access to these drivers. Additionally, you could request access to this NI Community and request the driver from there. For more information about this driver, you can read this whitepaper for a closer look at using the USRP in LabVIEW.
