Export & Import UME to new Portal 7.01

I need to copy all of the Users/Groups/Roles from our physical portal to our virtualized portal. I've exported three files out of the old portal for Users, Groups and Roles.

The new portal is a fresh 7.01 installation, patched to SP16.  I've setup the LDAP configuration to validate credentials against Active Directory.

Now, when I import Users, I get failures because Groups do not exist.  Or when I import Roles, I get failures that Users do not exist.  What's the catch?  Is there a sequence for doing a mass replication of the UME?

I'm exporting out of 7.01 SP12 and importing to 7.01 SP16.  I wouldn't think that would matter.

I've read the Help Files:

• Importing User Management Data
• Import Format for UME Principals
• User Data Format

Does anyone have a blog or best practice I could follow?