DO-Digital output.vi missing along with other vi'

I am trying to run a vi that interfaces with a pxi chassis however when i open the vi it is missing several sub vi's.   Such as "DO-Digital output.vi", "DAQmx Clear Task.vi", DAQmx Start Task.vi", along with Poly VI's like  "DAQmx Create Virtual Channel.vi", "DAQmx READ.vi" along with assorted others.   Any info on how to correct this problem would be greatly appreciated.  I believe it was created in Labview 8