They have to be the same version.
- I would backup the express DB on the 6.1.
- Build a lab server to match the exact 6.1** version. When doing the install for the lab point to an existing database (the restored version from 6.1 production).
- Once your lab machine has all the 6.1 jobs, perform a 6.9** upgrade on the lab server.
- Now you can export them as bin's and import them in the production 6.9.
** Make sure the SP and MP levels match production for 6.1 and 6.9
Nice thing about doing it this way is the original servers are left intact.