ResolutionParallels Plesk Panel Beta, the Plesk 9 Release, and the first patch (9.0.1) do not include Plesk Migration Manager.
The utility is under development now and will be available in a future update.
Currently, you may migrate objects from another Parallels Plesk Panel using Plesk Backup Manager. For information on migration to Parallels Plesk Panel 9.0 Unix/Linux with Plesk Backup Manager, refer to the following articles:
[How to] How can I migrate objects from Parallels Plesk Panel version 7.5 or 8.6 to Parallels Plesk Panel 9?
[How to] How can I migrate Plesk 9 using Backup Manager?