1.I have the same problem with my Postcard theme, So I want to align my image to center. I press insert media button, then upload the image, after setting name and caption I set alignment to CENTER and press insert to post. All seems fine till you save the post and look the page. When you editing an article images appear correct, but when you look this article directly on site all pictures placed LEFT. So center alignment seems to be not working, any solutions?
2.And one more thing, how cold I make the following: when I press on thumbnail a larger picture should move to front, when I press it once more it should go to thumbnail back(without following to direct link to image so i have to press back button). How to make that, what Plug-in does the job?