GW 2012 to GW2014 Migration

Hello all!

New GW admin at smaller company.

Current setup - GW 2012 on Win 2003

Moving to - GW 2014 on Win 2008

Set up newer box with same naming conventions.

The FID Editor doesn't seem to work with newer FIDs/GW.

What do I need to do to move them over (all on same Domain)? Would archiving the old user data and then importing it into GW 2014 be possible with different FIDs?

Thanks in advance.