Customer details on orders not showing

[www.premierbluetooth.com]

When customers register with our site the details are showing in the customer database but when they go through and place an order the billing and delivery address are not added to the order.

Any ideas where I should start looking for the problem?

Thanks in advance

[www.premierbluetooth.com]

Thank god for database backups. I still do not know what the problem was but as all threads say.

BACKUP BACKUP BACKUP

I'm just so glad I took notice of everyones advice