As far as the original topic at hand: I really don't see how that is a missing link at all personally. I mean, there are primates that exist today that are far more similar to us than that sample.
And therein lies my problem with this whole debate. At the end of the day, what difference does it make? I mean really... science should be working on discovering ways to produce energy with renewable resources, interstellar flight so we can colonize other planets, how to extract materials from space, curing cancer/AIDS/diabetes, and a plethora of other things. And Christianity should be trying to be a positive social influence out in a world that is full of violence, angst, and general hopelessness. Moving forward, I just don't see how proving beyond a shadow of a doubt that your side is right does anything other than "ha ha I was right and you were wrong!"
I am personally a Christian, and believe in Intelligent Design, but I don't believe that design happened in a literal 144 hour period. In fact, if I am not mistaken there is a verse in the bible that references the fact that a day to God could be years to man. And if you study how the creation was recorded in the Bible, you see that everything was created in a very specific order: one that very much coincides to the order that evolution prescribes to for organisms and the "big bang theory" as well for the stuff outside of organisms. And, if I what I believe is actually reality.... how does that help with finding the cure to cancer? I think both sides need to not get their panties in a wad because their world view isn't shared by everyone.