I did the flash site tutorial and yet

I did the tutorial for an all flash site by kirupa but when I adapted the process to my own swfs they fail to load. As a way to figure out if my swf’s are wrong I had the buttons load kirupa’s swf’s from the tutorial and it worked. why wont my swf’s load in the space? I’m stumped. And please when answering don’t go over board explaining things I’m relatively new at this and don’t understand actionscript the best.