Depth issues

depth issues
i have an external swf which is a scroll gallery. each thumbnail which is pressed load the the big pic on level 1. loadMovieNum,1.
it works just fine.
this external movie loads into a site. but when the big pic is shown the drop down menu i made is covered by the pic.
the drop down menu is located the placeholder mc where the external movie loads.
i have tried to code the depth isuue but probebaly not done it right since it does not work.
what sell i do?

i have tried to load the clip here but it tells me that the file size is too big.