Bought a Bosch router almost a year ago, but didn't have time to work
on the projects that I bought it for. Now that I do, I'm a bit stumped
how to put it together (Never used a router before.) I think I'm
missing parts. The shaft came with nut on it, but no collet that I can
recognize. There was a separate chuck that appears to have a 1/4"
collet, but I can't see how to attach it to the shaft. The directions
recommend using 1/2" shanks, so I suspect I may be missing a 1/2"
collet. I don't mind that, because I actually would prefer to attach
the 1/4" chuck, since I have some of those bits.

Here's a picture of the parts I have:

http://www.boundvortex.com/images/Chucks.jpg

Questions:

1) Am I correct that there appears to be a missing 1/2" collet, and
2) How can I attach the 1/4" chuck?

Thanks
(BTW, I have read the manual)