Please see this: http://x10hosting.com/forums/news-announcements/132911-additional-update.html
I'm afraid that your past the date, and that your account has probably been lost.
Please note that you had almost a month to request a restore.
If you are not aware of what is going on, note that it is a requirement to login to the forums at least once a month.
This is for a reason, as you can see when you need to do something important.