The WinCE build provided for this device appears to be missing some files which should be included. Also, it is possible to run programs build for other HPC and PPC devices by adding real or dummy files from those devices.
Prism 2.5 reference drivers can be downloaded from HPC Factor, or the specific CAB file is prism400-2577.cab
Install the CAB first, then plug in the card. When the popup appears and asks for the Driver Name, enter prismnds.