I agree WinTPE was an effective tool. Wish it was still around. The only theory I can come up with for discontinuing was that people were buying WinTPE instead of the more expensive SimPro/HandlingPro/Roboguide.
Does your version of OLPCPRO have the 'iP' on the right of the teachpendant screen? This will toggle between the legacy teachpendant to the new ipendant displays.