I edited the index.php file in my site, and all the formatting of my site disappeared! So I uploaded the backup of the whole theme that I had made via FTP and it made no difference and the site is still a mess! I *think* it's stopped reading the stylesheet, but *why*??
the development site is http://thebutterfliesareattacking.com
The real site is password-protected because it's under maintenance, but if you think you can help, please please please email me at [email address removed] and I'll give you the details.
Thanks so much. This is a disaster!