can you open the audio folder? If so, you could drag in the audio files but I will say that is a monumental undertaking to line it all up again....
It might be quicker to reinstall the old platform and open it from there.
I have opened some pretty old projects that I had saved as bundles to CD. Several opened OK and a few others came back with a "file corrupted" error and refused to open.
Hazarding a guess..... could it be a 64 bit VS 32 bit issue? Try running in 32 bit mode to see if that makes a difference.