DP,
Try using "ptapdl.exe" directly.
First, open a command prompt window by going to Start\Programs\Accessories. Then change to the folder that contains ptapdl; I think it's C:\Program Files\PowerTap\com . So in command prompt type:
cd c:\program files\powertap\com
The prompt should show your location. Then test to see if ptapdl is there by typing:
ptapdl -v
If it is, it'll give you the version #, "6.11" or whatever.
If that works, you can try downloading. Push the cpu into the cradle so that "HOST" appears, then type:
ptapdl -dtm -com 4
This will download (including date/time data) to the same folder (PT\com), but you can move it later. You will know it's downloading if it says continually: Status "NRECS" in subsystem "PTAP".
If you look at ptapdl.txt in the "doc" folder it explains how to use ptapdl and it's options. It shows the syntax to use in order to save to another folder directly.
Good luck, Jimmy