Well, no answer from ExpertFlyer in their thread, so maybe someone here can answer?
From what I gather, if I wanted to use Turkish miles to book a United flight, I need to find "I" (as in upper case i) inventory on United?
If so, I first tried using the Flight Availability, but it says I need to use the Award and Upgrade Search. The problem is that UA is not an available airline to search under the Award and Upgrade section. Am I missing something?