I've messed with the silly thing for about a week now. (OK, just from time to time.) I know that the javascript is not creating the top-most navbar items before assigning values to them. That's where it blows.
I've been greping the heck out of everything. I've looked at the pull-down-menus source from pages that work on photo.net and arsdigita.com (i.e. I'm viewing the source of a page with pull-down-menus). I decided that hasn't been fruitful yet. I've read all the available documentation (there isn't much of it). I've done everything I can find in the admin pages. If there's nobody out here in the discussion boards that has gotten this to work, then I guess I'm going to have to start wading through the ../tcl libraries for help. It seems like there's the link to the pull-down-menus from ad_header. (Maybe it isn't passing the right info? I don't know.) Or, I've got to try to hack through MakeNavLayers in pdm.js.
Has anyone already got it working? Can anyone save me the effort?