Lost my retail Nuendo 2 disk, need help

I lost my good old Nuendo 2.0 disk. I’d like to reinstall my G4 system, I have the original eLincenser copy protection Usb stick, but probably lost the disk, couldn’t find it anywhere. But still have the nice huge Nuendo 2 box:)
How can I get, download a retail one? Need it ASAP. Thanks!

well, no comment.