When I post an image from a web source in a news item or article (example here) that I want to align right, I have to put in the html code twice: 

First, I put in the code (align=right) while doing the article, then post the article.  The right align does not "take."  Then I go back in and edit, redoing the align right.  The second time the html does work and the image is properly aligned.  This has happened enough times now that I know it always happens that way with images from web sources.  Odd, huh?

By the way, I don't use images from a web source unless I know the source is a permalink--one of our often-used news sources does use permalinks, which this one is (click here).  Unless something is marked as a permalink I upload images I want to use to articles images.  I never have to use html code twice in that case.