[Plugin: Multilingual Text] Doesn't work in my slider widget

Darn. I thought it worked, and it did in the post itself, but in the slider widget on the homepage it just adds my [:en] and [:nl] codes and leaves out the flags.

I could leave it at that, but it just looks unprofessional on my homepage.

http://ww.wp.xz.cn/extend/plugins/multilingual-text/