Not positive which version of WP involved as I am updating for a friend's account. Tried to change the address of the blog and moved the files to a new directory. Everything should have been fine except the hosting was taking time to respond, so I ignorantly added the extension "index.php" to the addresses to see if that would allow the page to work, not foreseeing the danger.... Obviously this became a problem and now I can't access the dashboard or any administrative areas to return it back to the normal address. The blog displays but in basic HTML--it can't seem to access its other directories. Is there any way to salvage this situation?