Images are stacking Vertically in activity stream

I have an issue with the images in activity stream as you can see on my site. The images appear vertically instead of next to each other. I have tried the solution discussed about this issue here http://wordpress.org/support/topic/plugin-buddypress-activity-plus-images-are-stacking-vertically-in-activity-stream but it didn’t work for me. The thumbnails got broken and still not in correct position. Any help on this is appreciated. Please see http://www.iphoneblogger.net