You need to backup each of your Data Set from BSI TF 9.0.
Use Tech Tools - Backup
Restore on BSI 10.0 using "System Tools" --> Custom Backup and Restore.
This can be done from the website -
<BSI Server hostname>:<port>/eTF10d/access/showLogin.action
You can apply TUB 36 (All transports instead of cumulative only)