It cannot be done with Plesk Backup Utilities. BU dump can be only restored on the same Plesk version.
(Example: Plesk 6 dump can be restored to Plesk 6, Plesk 7 only on Plesk 7, etc...).
However BU dump can be restored on different Operating Systems.
Note: The only exception to this rule is the Plesk for Windows software. Plesk for Windows systems are not interchangeable with Plesk for Linux/Unix versions.
Since Plesk 7.1 Plesk data can be migrated using Plesk Migration Manager (PMM). It can migrate data between different Plesk versions/ OSes.