As Volunteers answering support questions do not have backend access to blogs and only Staff do, I recommend that you contact Staff directly and request their assistance with sorting this out. http://en.support.wordpress.com/contact/
Best wishes for a quick fix. :)
That is the way the themes look. They are built to make using custom CSS easier. It seems that either you have deleted your custom CSS or your year-long upgrade has expired and you need to pay for another year.
If you do renew the upgrade your previous rule sets should reappear. I don’t think they get erased when the upgrade expires but I haven’t been here that long so if that’s not the case get in touch with staff and they might be able to help.