RE: Cruise Control
Not sure what your problem is but I can remember a case where the transmission was replaced on a GM product and they forgot to connect a sensor on the transmissionn case. In that case the speedometer did not work neither so I would check with the people that replaced the transmission and have them check all the connections.
Make sure that they replaced it with the proper transmission also you could check with a Ford dealer and ask them where the cruise sensor is located.
Hope you get it fixed.