SWiSHmax pleloader and uploader

I have several swf movies with audio as one clip. I need a preloader. While first clip playes, loader should load other clips one after another and play them in order. Clips should be loaded but starts to play only in designated time- after previous clip completed, next starts to play. I will give you length, size and rate of the clips. I should use your preloader by changing urls of loaded clip files.