So a few questions:

Can you see the photos just fine when viewing the album?

Are you saying that uploaded photos don't generate stream items?

After uploading photos
Has been posted .. but did not Showing

hey peiyouliao,
this problem was coming from your easysocial theme, looks like they haven't updated it to the latest version (we made some changes to image handling in the last 2 versions).

I now applied some fixes to your site and the pictures are showing fine now: http://screencast.com/t/1UlWe8ARqY

hope that helps and have a nice day

Thanks Alex