Symantec License Portal and licensing has enormous failures. We recently purchased System Recovery and backup Exec 11d, everyone of them had issues regarding licensing.
Best thing to do is call the support line for licensing and provide them the order number, they should be able to send you the Serial Number to use to get the SLF file sent. Be warned, ever since BackupExec 11d release, the licensing department takes a very long time to get through to someone. Be prepared for 30min to an hour wait.
Yes you will need to activate to use the RestoreAnywhere feature, which allows the mini-sysprep like setup to dissimilar hardware.