The evidence that Terri did not approve of removal from life support has now come to light:
http://www.freerepublic.com/focus/f-news/1355876/posts
Not so sure about the argument that Greer was wrong. The testimony was that Terri Schiavo and the witness were watching a movie about Karen and Quinlan when Terri allegedly made the statement referred to by the witness.
The movie had to be "In the Matter of Karen Ann Quinlan" as it is the only movie made about Quinlan. The movie was a made for TV special and aired in 1977, prior to Quinlan's death. It received poor reviews and dissappeared into obscurity.
If Teri and the witness were watching a movie out Karen Ann Quinlan, Greer's deduction that the comment had to be made in the mid 70's is correct.