Backup Exec data import question

Hello again ladies and gentlemen,

I had a question I was hoping someone around here could answer for me.

I used to use Symantec Backup Exec 11d and would use this to transfer information to my tape library. I am still using the same library, but have since changed from a W2k3 server to W2k8 server and am now running Backup Exec 2010, and have been for a while now. Hasn't been an issue before, but now I have requests to access data from the old version of Backup Exec.

Is there a way to import all the data stored through 11d to BE 2010 without overriding all the data already stored through BE 2010 and without having to re-inventory and re-catalog every tape?

Thanks!