Wow, I'm surprised there hasn't been a response to your comments in all these years. I just saw the movie so here are my thoughts on the subject...
Apparently Ms. Hayward's scenes were edited out. That usually means the director decided the story could be told as effectively without that character being in the movie. It may or may not have anything to do with time restrictions. Sometimes, often after the movie is made, scenes and/or characters don't seem to fit the tone of the rest of the movie so they're left out.
On the other hand, when I hear of an 'uncut version' of a movie, I usually think it's the director's final version of the movie. Cuts were made after the fact for the sake of time; the movie didn't test well; the studio or some other group didn't approve; alternate versions were made; etc.
In this case, it doesn't sound like Ms. Hayward's scenes made it into the final version of the movie. That means if there are other versions out there she would not be in any of them; uncut, alternative ending, or anything else.
Woman, man! That's the way it should be Tarzan. [Tarzan and his mate]
Yes, after all these years! And I had forgotten all about it. I won't bother looking for any uncut version then.
Thanks for your reply.