Hmmm....does indeed seem to be missing a bit.
Anybody other than PCEH got one of these units they'd care to disassemble / photo / post? This missing gear-looking thing is actually on the bottom of the assembly, is similar in nature to the rubber feet I was talking about (although given the fact this thing sets from top down, this shouldn't (in theory, given notions of gravity) be an issue....the centerpiece of his picture is actually the spindle-mate that rests on top of the CD once inserted..)
I don't know...there's one of these things on eBay ATM, I may buy it just for the Hell of it...