Great to hear.
Okay, try syncing again and letting it fix your customers now.
So here's the problem.  QuickBooks isn't notifying us that the sub-customers and sub-items have had their FullName changed.  Since the FullName is derived from a combination of the parent customer/item and the sub-customer / sub-item, the notification of updates on parents aren't affecting the childs.  I hope I didn't lose you. :)
We're going to have to do a little extra work in the syncing portion to make this automatic.  So between now and the time we get a solution for this, this could happen again.  We'll try to get a solution asap.
Paul