The PC-LPM-16/PnP is not supported by NI-DAQ 7.0 or higher. In order to use this board, you will have to install NI-DAQ 6.9.3 or older (see Versions link below). This will use the Traditional driver. As you noted this device is not supported by NI-DAQmx. There are numerous examples that ship with LabVIEW that should illustrate how to use this board. As for the PC4350, what version of the driver did you install?
<a href="http://www.ni.com/support/daq/versions.htm";>NI-DAQ Version Reference</a>
