We are moving servers for CreateAForum most users will not see any downtime at all.
For custom domain users (not using createaforum.com) sites you will need to update the ip address of your domain at your domain register company
IP's for the servers listed below:
68.233.250.132 -> createaforum.com
With this new upgrade we are looking at greater performance using 64bit with the latest version of php and gain way more ram.
If you have any server move related questions post in the support boards.
Create A Forum