1) Submit a support ticket containing the following details.
2) Your domain name and Plesk 9 clientXXXXX login name
3) Your desire to upgrade to Plesk 11 as soon as possible
4) We will backup/restore all of your data and change the name servers on domains where required
5) Provide us details of an 8 hour window to perform the migration
6) Your site will not suffer any downtime during the process
Our technicians will receive your request and schedule the upgrade according to your requirements.