Updating to Plesk 9

From Blacknight Hosting and Domain Wiki

Plesk will allow you to upgrade to the latest version of the Plesk 9.* series.

HOWEVER

The Parallels software that powers cp.blacknight.com does not fully support version 9.* of Plesk.

If you are comfortable with DNS etc., then it should be "ok", but the tight integration that is available for Plesk 8 is currently not available for Plesk 9.