I am assuming that, when you say you bought the upgrade, you purchased the GB Pro App. If that is the case, you should be able to import your data as specified in the
"GB Help" thread.
Downloading Data "Two-Way-Sync"; From the Website to the GB Pro App
Note: The account name and password must be the same on all devices.
Under "Settings", "2 Way Sync"; make sure that the "On (Download & Upload)" is turned on (ie checked).
Under "Settings", "Account Info"; Select "Sync All Logs".
You will see a spinning wheel saying "syncing..." Please be patient this will take a while.