[Plugin: NextGEN Gallery] Slideshow trouble

Slideshow
Can anyone help me with this Browser probleams with the slide show?

This page : http://www.mcdias.com/promocoes/

(Slideshow)
Firefox 3.5.5 -> not working
IE8 -> not working
Chrome 4 -> working fine

There´s this wierd code in the page
<!–
//<![CDATA[
var so6_1 = {
params : {

Can anyone give me a clue on how to fix this?

http://ww.wp.xz.cn/extend/plugins/nextgen-gallery/