Question about how .swf’s load in data upon initial request of site?

What is the hierarchy?

Which elements load first, and in what frames?

If external data is loaded into an upper level (say in frame 5) and the movie is scripted to not play Until frame “20” has loaded, will FLASH recognize that frame “5” contains data and WAIT for this frame to load, or, because that data is contained externally, will FLASH just pass frame “5” by and continue loading?

Does this question make any sense?

Can anybody direct me to where I might find this info?

Thanks