Photo Gallery using XML and Flash - thumbnails problem

I learned from great kirupa tutorial and implemented the thumbnail gallery in my site.
I have following problem:
If I open the site in browser Opera or Firefox (FP 8.0.0.447) i see only 1 thumbnail image - is it bug in Player?

In IE 6 I have FP 7.0.19.0 and I can see all thumbnails in the navigation bar - also correct.

You can see it here:http://www.kk-chlazeni.cz/main_sites/default.html
If site opens tahn click on link Reference :wink: