So, you can actually move the shifter from park to reverse/neutral/drive, but the transmission doesn't seem to actually respond? You tried moving it manually AT the trans, correct, with the cable disconnected? How did it feel- could you feel individual detents as the internal selector moved from position to position?
If yes to all the above... you could have a bad connection and the solenoids aren't engaging, possibly that portion on the ecu (or the tcu if it has that) has gone bad... Go get a free estimate!! Most tranny shops around here give free estimates.
Let us know what you find. Maybe it'll help one of us down the road