Preloader problem

hello, two days i try to integrate preloader in the gallery and test offline, the code works, but not complete… :frowning:
I used trace- function to controll the process, i see the messages like “loading started _level0.fotos” and than immediately “_level0.fotos loading finished” and extern swf-file is not completly loaded by simulation (56 kB) and “loading was in progress” is not appear…
the AS-code in galleryTest.txt
please, help.