I recently transitioned to Media Temple’s (dv) 4.0 from their (dv) 3.5, and though it was a pretty painless process, I’d like to share the following suggestions to ensure a smooth transition for anyone else considering upgrading: Following their guide was very helpful, Migration Manager makes the transition fairly straightforward: http://wiki.mediatemple.net/w/(dv)_4.0:Plesk_Migration_Manager Item 12 on their guide didn’t make sense until I moved everything over. All your Domains are under Subscriptions and should be listed under your name, this is the menu you’ll use the most and it allows you to launch the Control Panel for all domains under the subscriber, which after migration will be you. The new Control Panel is where you’ll manage Users, Email Address, FTP, Stats, etc. You’ll have a Subscriptions drop down at the top which allows you to quickly switch between all domains under that subscriber. All previous email users have roles now and can now login to your server and manage their email accounts. The only caveat is that they can see all other domains on that particular Subscriber’s Control Panel. This isn’t a big deal for me, most of my customers don’t want to manage anything, but I’ll be creating different subscribers for each domain to prevent unauthorized access. I had one client that had another developer request access so I setup a limited account on Plesk 8.6, which showed up as a Domain Administrator. Since all my domains were on one Subscriber, this person had access to all my accounts, which wasn’t ideal, so I did the following. Go to the Customers Tab, create a new account with the customer contact information and give them a username and password (I used the FTP username and password to keep access the same as on the old server), but give a fake domain name,…