To answer the second part of your question first regarding importing. I wouldn't recommend you attempt it.
If the existing environment is presently running on a 2005 SQL instance (which it sounds like it is). You need to work on that environment.
What version of Windows is on the old server now?
What version of RMS is on the old server now?
Is the SQL 2005 Backwards compatibility patch on the old server?
Look forward to your reply, thank you.