Assuming what I’m currently seeing is the “hacked” version, did you recently change your theme to that one (the fall theme)?
I changed my blog to that theme a few months ago. Last night all of my posts were loading on top of each other. They are not doing that now, but everything else has changed to how the theme originally was. I changed a lot of that a long time ago and I don’t know why it reverted back. Can anyone tell me why this might have happened so I can make sure it never happens again?
Possible reasons
(1) Your blog admin account password is too simple.
(2) Your control panel password is too simple.
(3) Permissions of some folders are set to 755 or something else, and then the contents can be downloaded and manipulated.
(4) The FTP trasmission of data was intercepted.
You may want to consult with some guys at Lunarpages anyway.
A careful look at your logs might help pinpoint where things went wrong if you were hacked. Look for visitors entering or exiting your site in strange places, or accessing entire directories not normally visited in and of themselves (like an image directory).