Hi Chris,
we changed the data structure in SCM-Manager v2, so the migration is a mandatory step. To start this migration, it is also necessary, that all previous data has been updated to version 1.60, because a 2.x cannot do this. So you have to update to 1.60 and start it once. Normally, this shouldn't make any problems. Only then you can pack up the old home folder and copy it to a server running 2.x (preferable the latest version, currently 2.24.0). The server will come up with the migration assistant.
When problems arise, please let us know.
Regards
René