HTH

1)You can’t do truly interactive drop down menus in an interactive PDF. You could create a separate page which has the expanded menu displayed. Not ideal, but this is really only for mock up purposes anyway.
2 & 3)While you can create pop up menus in Fireworks, they’re a little buggy, so I’d recommend doing this kind of thing using Dreamweaver. If I do build them in FW, I export as HTML and Images for the prototype. Note: I only do so for prototyping purposes, never for final production work.

They are not dumb questions.

I have a question for you, and apologize in advance if it’s a bit noobish.

If you were building a site which would have a top navigation menu with links hidden in drop-down panels, how would you go about demoing that for a client?

I guess I’m really asking several questions here:

1) Could you build such a menu in Fireworks at all?
2) If not, would you have to do it in Dreamweaver?
3) If so, what kind of prototype would permit the client to see it? Can it be demoed in an acrobat file? HTML+images? CSS+images? What if the menu isn’t CSS-only, but uses some javascript?

Sorry if these are dumb or inappropriate questions…thanks again for providing these resources.