well, the way i am setting it up is:
main movie is only one frame long with a all the background junk.
a movie clip, "container" on the right that will have the content .swf files loaded into it.
and a movie clip on the left called "navigation" which will have all the buttons.
The navigation movie clip is going to be very long. it only has buttons, which are small in file size, but "navigation" will run the length of my entire movie, all the way from "wall units" to "kitchens"
Is this set up the best way? and what if i decide to add more buttons...and the movie gets longer. i hope i am doing this right.
i'll e-mail you some of my files.