amm,
Just curious....after your collegue has added audio to the
presentation, did he/she go back and adjust the timings of the
anims? Most often what will happen is that all the animated
elements will get pushed to the end of the audio; if you go into
the Audio Editor, what you might find is that there will be a few
blue colored markers all bunched up together at the very end of the
audio for a given slide. The solution to that problem is to either
go into Synchronized Timings to adjust when the animations are
supposed to appear, or you could drag each of the blue markers in
the Audio Editor to have the animations appear where/when you want
them to.
Regarding item #2, I'm not really sure why all of your text
would be just sitting there, but I'd check the Audio Editor for
that as well: take a look at where the animation markers are
sitting within the Audio Editor's timeline. I'd suspect, however,
that if no markers are present, that perhaps the animations for the
text builds either weren't set properly or were killed off somehow.
Hope that helps,
Rob