The term 'Export-FIMConfig' is not recognized as the name of a cmdlet, function, script file, or operable program

This one had me stumped for a little while.  Turns out, there were four versions of the following files hanging out in the GAC.  I guess the uninstall process didn't clean these up.  I removed all of the older ones, and my scripts started working!

C:\windows\assembly
Microsoft.IdentityManagement.Logging
Microsoft.ResourceManagement