if you ever use microsoft expression web to update a website that also has a wordpress blog on it you should be aware of it asking you if you want it to delete any files that are not a part of the expression website. i tell you this because i was asked such a question while updating the tapestry website. i told it sure it could delete those extra files and then discovered that the extra files were my wordpress blog.
that’s why the look of the blog has changed. i accidentally deleted all the wordpress blog files. thankfully the blog database was not deleted so i didn’t lose any of my posts. i did however lose all my formatting.