nito tv photos

I installed atvflash and everything works perfect. But I have a doubt: Can I see photos? I
I created a folder within movies folder and named it photos and I put in it several pictures, but when
I want to see them in my apple tv, click play and a window appears and says my apple
TV does not have permission to view the contents of the folder.

Which is the problem?

sorry my bad English, I Speak Spanish