Hello Chia,
you can see the driver versions here:
http://digital.ni.com/softlib.nsf/MainPage?ReadForm&node=132010_US
Once you check that the version supports your board, your operating system and your development environment (LabVIEW, CVI, etc...), you can download the driver and ... start using the board! The best place to see that is the readme files, and I see that for your board (7344), the correct version would be 5.2.
Hope this helps,
Jorge M.