If you set up recurring jobs with Backup Exec 12, you must either recreate the job or change the selection list to use Microsoft virtual servers.
Backup Exec is not intended to be a tool to migrate from Microsoft Virtual Server to Microsoft Hyper-V. For information about how to migrate, see Microsoft’s virtual machine migration guide.
http://technet.microsoft.com/en-us/library/dd296684(WS.10).aspx