Anyway, now they can both see each other. Let's try and actually watch something I have sitting on my PC... First the easy way: copy a file to My Tivo Recordings folder and open it from the PVR... Nope, nothing there.
Next try was TiVo Desktop Plus: select another folder to transfer.The file shows up on the desktop list, but on TiVo it says "empty"...
If I try to see recordingts on TiVo I open the TiVo Desktop and when I click Pick Recordings to Transfer I get this:

"There was an error while attempting to retrieve data from the selected DVR. Access is denied"
Any ideas?