I heard a show on NPR about that also. They interviewed one of the people invoved telling about how he had secret meetings with other homosexuals and got themselves elected to the ledership of the APA. When they had enough of their group to have a voting majority they changed the APA's position.
These organization's positions are real scientific you see. /sarcasm
It would probably be treated as a tinfoil-hat story if it was told by a conservative but the story was being told on NPR by the people involved, treating it as a good thing.
I remember the piece as well. The women narator ended the story reminiscing about seeing her grandfather and his significant other walking hand-in-hand down a beach in Florida. Ah nostalgia....