Preloader question

I have a problem with my preloading.
I have a flash file that needs to load 11 external swf’s

So i have 11 MC’s called Imgbox1 till 11
I am loading the external swf’s with the function


This works correct but now i want to add a preloader to the external swf’s and this is not working because when i add a preloader to it that i found in this tutorial :…epreloader.htm

Then the preloader is not running. I dont know why this is not working.
What i also want to make is a custom preloader so not a bar or a percentage loader.

Can somebody help me ?