It looks like the amplitude of the upper audio track is much bigger then the amplitude from the lower audio track. My experience is that this sometimes confuses plural eyes. What helped me in those cases is not synchronizing all the short clips at the same time with the longer audio events but only a few each time. Just see if that helps for you.
Yes, the link is still working for me. And I received the activation code by e-mail. But I haven’t installed it yet. I don’t like NewBlue plugins so much…