Hi Natasha,
You can not restore Windows 2000 server using BE SR 6.5 and backup of Remote BE 9.0 Agent. You can use BE 10d with IDR to restore from BE 9.0 for example. Better place to ask you question is BE 9 forum.
You can restore to dissimilar hardware only using LiveState Recovery 6 or Backup Exec System Recovery 6.5 with Restore Anywhere option and only if you created image - backup using one of this two products.
Best regards,
Vladimir