I'm guessing you're trying to figure out the difference between DAQ and DAQmx? Here's the thread on that: http://forums.ni.com/ni/board/message?board.id=250&message.id=26793
check out some of the examples under Labview8.2/examples/DAQmx/Analog IN
I've included one here and if you want it to continuously outputting data in groups, just put a while loop around the data reading portion of the program