Exciting news for everyone who is still on Exchange 2003: Intermedia has changed the migration process, and changed it considerably.

BEFORE you had to pay us for the data migration and assistance or perform the migration on your own.

NOW we can migrate you to the 2007 platform for free. You have to create an 2007 account with Intermedia either by using our Intermedia website interface or by contacting our sales department (1-800-379-7729 option 2), log into your new account and request a migration from there. The following process is the best way to migrate with as little inconvenience and impact as possible.

Please take a closer look here: Exchange 2003 to Exchange 2007 Migration Procedure. The article contains detailed information about each step and would help you to understand the way migration is performed.

Kate S. Exchange hosting 2003 to 2007 migration, Knowledge Base