I'm looking for a way to see what pages I have and what they look like, when
navigating around. I'd obviously like to be able to do it from the Finder, but
figure that you should at least be able to do this from Bridge, but can't
figure out how.

Can you see the multiple pages within a Fireworks file from Bridge?

Unfortunately no, but did you try the CS4 export to Pdf feature?
Bridge can show pages from a multipage .pdf created from CS4.

H