AFAIK, restore is supported only to the same version. Here you are talking about different major release 6.0.x and 6.1.x, that is most likely to fail and I think the software might not even allow you to do so.
But there is no harm in trying...:) you can always re-image it back in case something goes wrong, it seems you have reimaged already so there won't be much data on the box anyway.
Regards
Farrukh