I think he's talking about Visual Lightbox. Mark, all the clues are here in this thread, including where to move the directories in NoF's Publish View. However, since I'd have to piece it together again before I do it on another site, I'll write down all the steps and then publish it here when I've gotten it done.

The key is, VLB requires XHTML. NoF navbars don't work with XHTML (if you want flyouts, otherwise they're just fine). So place the navbars in a layout region and change the publishing method for that layout region to Fixed. The other problem I had was because I'd changed the Publishing method to XHTML site wide - you don't need to. Keep it at Dynamic and you won't run into the problems with other pages that I did (XHTML is NOT very good for page layout, aligning objects, etc. except on very simply pages). Just used XHTML for the page with the VLB gallery.